CVE-2026-16118

HIGHPre-NVD 7.17.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-17. A secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — Patch released this weekElevated

Also known asEUVD-2026-45266 (ENISA EUVD) · GHSA-cp7g-r78m-cc2g (GitHub Security Advisories)Source: ENISA EUVD

7.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
48
EG Risk 48/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity71% × 45%
Impact severity (EG Severity): CVSS 7.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.1): severity, escalated by confirmed exploitation. This CVE's 7.1 is its impact severity (EG Severity), not escalated.

EG Severity
7.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 17, 2026

Last Modified

November 12, 2026

Advisory Details (3)

Auto-updated Jul 17, 2026
Patch available. Sources: redhat.
Web page

(#YWH-PGM9867-233) Heap Overflow on GLib through _xdg_mime_magic_parse_magic_line() in gio/xdgmime/xdgmimemagic.c via Incorrect Byte-Swap Pointer Arithmetic on MIME magic content in user-writable XDG data location (#41) · Issues · xdg / xdgmime · GitLab

https://gitlab.freedesktop.org/xdg/xdgmime/-/work_items/41
Red Hat

2501732 – (CVE-2026-16118) CVE-2026-16118 xdgmime: heap-based buffer overflow in _xdg_mime_magic_parse_magic_line() in xdgmimemagic.c

https://bugzilla.redhat.com/show_bug.cgi?id=2501732
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-16118

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatglib2-0:2.68.4-29.el9_9.12026-11-11redhat
redhatglib2-0:2.80.4-22.el10_3.232026-11-11redhat
redhatrhelai3/disk-image-cuda-rhel9:17932067582026-10-29redhat
redhatrhelai3/bootc-rocm-rhel9:17931358632026-10-29redhat
redhatcert-manager/cert-manager-operator-bundle:17919662592026-10-14redhat
redhatcert-manager/cert-manager-operator-bundle:17919704842026-10-14redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17914597112026-10-13redhat
redhatrhaii/vllm-gaudi-rhel9:17914271822026-10-13redhat
redhatrhaii/vllm-rocm-rhel9:17914258692026-10-13redhat
redhatrhaii/model-opt-cuda-rhel9:17918038212026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17890290762026-10-13redhat
redhatrhaii/vllm-cuda-rhel9:17914736312026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17913710692026-10-13redhat
redhatrhaii/vllm-cpu-rhel9:17914736142026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17917882872026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17913783952026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17914597592026-10-13redhat
redhatrhaii/vllm-spyre-rhel9:17918183572026-10-13redhat
redhatrhai/base-image-cuda-12.9-rhel9:17912322572026-10-12redhat
redhatrhai/base-image-cuda-13.0-rhel9:17912318202026-10-12redhat
redhatcostmanagement/costmanagement-ui-rhel10:17914608512026-10-08redhat
redhatrhai/base-image-cuda-13.0-rhel9:17907036452026-10-05redhat
redhatrhai/base-image-neuron-rhel9:17907035572026-10-05redhat
redhatrhai/base-image-spyre-rhel9:17907036302026-10-05redhat
redhatrhai/base-image-cpu-rhel9:17907036562026-10-05redhat
redhatrhai/base-image-tpu-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-rocm-7.14-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-rubin-rhel9:17907037072026-10-05redhat
redhatrhai/base-image-cuda-12.9-rhel9:17907037062026-10-05redhat
redhatrhai/base-image-gaudi-rhel9:17907035532026-10-01redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.66.8-1 ... 2.89.3-2 (186 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.74.6-2 ... 2.90.1-2 (148 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.84.3-1 ... 2.84.4-3~deb13u4 (7 versions)
  • every version up to 2.84.4-3~deb13u5: fixed in 2.84.4-3~deb13u5
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.84.3-1 ... 2.88.3-2 (41 versions)
  • every version up to 2.88.3-3: fixed in 2.88.3-3
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 19× in last 7d / 57× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 440 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 340 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 21:28 UTCEchelonGraph re-scored
  2. 2026-11-12 21:28 UTCVendor advisory
  3. 2026-11-12 21:28 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  4. 2026-11-12 20:47 UTCEchelonGraph re-scored
  5. 2026-11-12 20:47 UTCVendor advisory
  6. 2026-11-12 20:47 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  7. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-11-11 13:28 UTCEchelonGraph re-scored
  10. 2026-11-11 13:28 UTCVendor advisory
  11. 2026-11-11 13:28 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  12. 2026-11-11 12:24 UTCEchelonGraph re-scored
  13. 2026-11-11 12:24 UTCVendor advisory
  14. 2026-11-11 12:24 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  15. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  16. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  18. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  19. 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  20. 2026-11-06 08:27 UTCEchelonGraph re-scored
  21. 2026-11-06 08:27 UTCVendor advisory
  22. 2026-11-06 08:27 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  23. 2026-11-06 07:48 UTCEchelonGraph re-scored
  24. 2026-11-06 07:48 UTCVendor advisory
  25. 2026-11-06 07:48 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
Show 75 more
  1. 2026-11-05 17:27 UTCEchelonGraph re-scored
  2. 2026-11-05 17:27 UTCVendor advisory
  3. 2026-11-05 17:27 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  4. 2026-11-05 16:49 UTCEchelonGraph re-scored
  5. 2026-11-05 16:49 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  6. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  7. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  8. 2026-11-03 16:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  9. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-10-29 23:26 UTCEchelonGraph re-scored
  14. 2026-10-29 23:26 UTCVendor advisory
  15. 2026-10-29 23:26 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  16. 2026-10-29 22:31 UTCEchelonGraph re-scored
  17. 2026-10-29 22:31 UTCVendor advisory
  18. 2026-10-29 22:31 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  19. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-29 10:25 UTCEchelonGraph re-scored
  21. 2026-10-29 10:25 UTCVendor advisory
  22. 2026-10-29 10:25 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  23. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  26. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  27. 2026-10-25 14:47 UTCEchelonGraph re-scored
  28. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  29. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  30. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  31. 2026-10-22 02:32 UTCEchelonGraph re-scored
  32. 2026-10-22 02:32 UTCVendor advisory
  33. 2026-10-22 02:32 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  34. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  35. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  36. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  37. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  38. 2026-10-18 04:01 UTCEchelonGraph re-scored
  39. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  40. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  41. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  42. 2026-10-14 20:32 UTCEchelonGraph re-scored
  43. 2026-10-14 20:32 UTCVendor advisory
  44. 2026-10-14 20:32 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  45. 2026-10-14 19:38 UTCEchelonGraph re-scored
  46. 2026-10-14 19:38 UTCVendor advisory
  47. 2026-10-14 19:38 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  48. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  49. 2026-10-14 03:29 UTCEchelonGraph re-scored
  50. 2026-10-14 03:29 UTCVendor advisory
  51. 2026-10-14 03:29 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  52. 2026-10-14 03:15 UTCVendor advisory
  53. 2026-10-14 03:15 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  54. 2026-10-14 02:41 UTCEchelonGraph re-scored
  55. 2026-10-14 02:41 UTCVendor advisory
  56. 2026-10-14 02:41 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  57. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  58. 2026-10-13 09:28 UTCEchelonGraph re-scored
  59. 2026-10-13 09:28 UTCVendor advisory
  60. 2026-10-13 09:28 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  61. 2026-10-13 09:09 UTCEchelonGraph re-scored
  62. 2026-10-13 09:09 UTCVendor advisory
  63. 2026-10-13 09:09 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  64. 2026-10-12 21:27 UTCEchelonGraph re-scored
  65. 2026-10-12 21:27 UTCVendor advisory
  66. 2026-10-12 21:26 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  67. 2026-10-12 21:03 UTCEchelonGraph re-scored
  68. 2026-10-12 21:03 UTCVendor advisory
  69. 2026-10-12 21:03 UTCGHSA enrichmentGHSA-cp7g-r78m-cc2g · GitHub severity HIGH · GitHub CVSS 7.1
  70. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  71. 2026-10-12 16:30 UTCEchelonGraph re-scored
  72. 2026-10-11 20:09 UTCEchelonGraph re-scored
  73. 2026-10-11 17:21 UTCEchelonGraph re-scored
  74. 2026-10-11 14:54 UTCEchelonGraph re-scored
  75. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile

Frequently asked(5)

What is CVE-2026-16118?
CVE-2026-16118 is a high-severity vulnerability; its CVE record was published on July 17, 2026. A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is…
When was CVE-2026-16118 made public?
CVE-2026-16118 was made public on July 7, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on July 17, 2026. EchelonGraph's copy of the record carries a last-modified date of November 12, 2026; the record at its source may have been updated since.
Is CVE-2026-16118 actively exploited?
CVE-2026-16118 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-16118?
CVE-2026-16118 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-16118?
A fix for CVE-2026-16118 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-16118 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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