CVE-2026-58013

HIGHNVD 8.28.2
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.7% (54th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 6.5 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-06-30) is not newer than that change (2026-11-10), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-40315 (ENISA EUVD) · GHSA-4x46-h598-64qr (GitHub Security Advisories)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in GLib. A buffer over-read can occur in g_io_channel_read_line_backend() in the giochannel.c file when a custom line terminator with a length greater than one is set, causing memcmp to read past the GString buffer. This vulnerability can cause a minor information disclosure of 7 bytes or a denial of service when the buffer over-read crosses a page boundary.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.7% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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
0.7%
EPSS %ILE
54th
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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 every mission impact level.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 every mission impact level.

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

Exploitation none (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

June 30, 2026

Last Modified

November 10, 2026

Advisory Details (3)

Auto-updated Jun 30, 2026
Patch available. Sources: redhat.
Web page

(#YWH-PGM9867-199) Buffer Over-read on GLib through glib/giochannel.c via "g_io_channel_read_line_backend" (#3925) · Issues · GNOME / GLib · GitLab

https://gitlab.gnome.org/GNOME/glib/-/issues/3925
Red Hat

2492248 – (CVE-2026-58013) CVE-2026-58013 glib: buffer over-read in glib/giochannel.c via "g_io_channel_read_line_backend"

https://bugzilla.redhat.com/show_bug.cgi?id=2492248
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-58013

Vendor Advisories for CVE-2026-58013(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
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/cert-manager-istio-csr-rhel9:17913783952026-10-13redhat
redhatrhaii/vllm-cpu-rhel9:17914736142026-10-13redhat
redhatrhaii/vllm-rocm-rhel9:17914258692026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17917882872026-10-13redhat
redhatrhaii/model-opt-cuda-rhel9:17918038212026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17914597112026-10-13redhat
redhatcert-manager/cert-manager-operator-rhel9:17890290762026-10-13redhat
redhatrhaii/vllm-spyre-rhel9:17918183572026-10-13redhat
redhatrhaii/vllm-cuda-rhel9:17914736312026-10-13redhat
redhatrhaii/vllm-gaudi-rhel9:17914271822026-10-13redhat
redhatcert-manager/cert-manager-istio-csr-rhel9:17914597592026-10-13redhat
redhatcert-manager/jetstack-cert-manager-rhel9:17913710692026-10-13redhat
redhatrhai/base-image-cuda-12.9-rhel9:17912319262026-10-12redhat
redhatrhai/base-image-cuda-13.0-rhel9:17912320482026-10-12redhat
redhatrhai/base-image-cuda-12.9-rhel9:17907037062026-10-05redhat
redhatrhai/base-image-rocm-7.14-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-cpu-rhel9:17907036562026-10-05redhat
redhatrhai/base-image-cuda-13.0-rhel9:17907036452026-10-05redhat
redhatrhai/base-image-tpu-rhel9:17907035542026-10-05redhat
redhatrhai/base-image-rubin-rhel9:17907037072026-10-05redhat
redhatrhai/base-image-neuron-rhel9:17907035572026-10-05redhat
redhatrhai/base-image-spyre-rhel9:17907036302026-10-05redhat
redhatrhai/base-image-spyre-rhel9:17907035682026-10-01redhat
redhatrhai/base-image-rocm-6.4-rhel9:17907035452026-10-01redhat
redhatrhai/base-image-cpu-rhel9:17907035902026-10-01redhat
redhatrhai/base-image-cpu-rhel9:17907036312026-10-01redhat

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

(5 across 5 ecosystems)
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
glib—
  • every version up to 2.86.4-r0: fixed in 2.86.4-r0
—
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~deb13u3 (6 versions)
  • every version up to 2.84.4-3~deb13u4: fixed in 2.84.4-3~deb13u4
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
glib2.02.84.3-1 ... 2.88.0-1 (37 versions)
  • every version up to 2.88.1-2: fixed in 2.88.1-2
—

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 15× in last 7d / 52× 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 484 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 384 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  2. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  3. 2026-11-10 20:34 UTCVendor advisory
  4. 2026-11-10 20:34 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub severity MODERATE · GitHub CVSS 6.5
  5. 2026-11-10 19:31 UTCEchelonGraph re-scored
  6. 2026-11-10 19:31 UTCVendor advisory
  7. 2026-11-10 19:31 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub severity MODERATE · GitHub CVSS 6.5
  8. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  9. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  10. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  11. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  12. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-11-06 08:27 UTCVendor advisory
  14. 2026-11-06 08:27 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub severity MODERATE · GitHub CVSS 6.5
  15. 2026-11-06 07:48 UTCEchelonGraph re-scored
  16. 2026-11-06 07:48 UTCVendor advisory
  17. 2026-11-06 07:48 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub severity MODERATE · GitHub CVSS 6.5
  18. 2026-11-05 23:27 UTCVendor advisory
  19. 2026-11-05 23:27 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub severity MODERATE · GitHub CVSS 6.5
  20. 2026-11-05 22:24 UTCEchelonGraph re-scored
  21. 2026-11-05 22:24 UTCVendor advisory
  22. 2026-11-05 22:24 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub severity MODERATE · GitHub CVSS 6.5
  23. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  25. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
Show 75 more
  1. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-29 23:26 UTCVendor advisory
  6. 2026-10-29 23:26 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  7. 2026-10-29 22:31 UTCEchelonGraph re-scored
  8. 2026-10-29 22:31 UTCVendor advisory
  9. 2026-10-29 22:31 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  10. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-25 14:17 UTCEchelonGraph re-scored
  16. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  17. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-10-22 12:34 UTCEchelonGraph re-scored
  20. 2026-10-22 12:34 UTCVendor advisory
  21. 2026-10-22 12:34 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  22. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  25. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  26. 2026-10-18 03:28 UTCEchelonGraph re-scored
  27. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  28. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  29. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  30. 2026-10-14 20:33 UTCVendor advisory
  31. 2026-10-14 20:32 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  32. 2026-10-14 19:38 UTCEchelonGraph re-scored
  33. 2026-10-14 19:38 UTCVendor advisory
  34. 2026-10-14 19:38 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  35. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  36. 2026-10-14 03:29 UTCVendor advisory
  37. 2026-10-14 03:29 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  38. 2026-10-14 03:15 UTCVendor advisory
  39. 2026-10-14 03:15 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  40. 2026-10-14 02:41 UTCEchelonGraph re-scored
  41. 2026-10-14 02:41 UTCVendor advisory
  42. 2026-10-14 02:41 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  43. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  44. 2026-10-13 09:28 UTCVendor advisory
  45. 2026-10-13 09:28 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  46. 2026-10-13 09:09 UTCEchelonGraph re-scored
  47. 2026-10-13 09:09 UTCVendor advisory
  48. 2026-10-13 09:09 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  49. 2026-10-12 21:27 UTCVendor advisory
  50. 2026-10-12 21:26 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  51. 2026-10-12 21:03 UTCEchelonGraph re-scored
  52. 2026-10-12 21:03 UTCVendor advisory
  53. 2026-10-12 21:03 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  54. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  55. 2026-10-12 15:53 UTCEchelonGraph re-scored
  56. 2026-10-11 19:37 UTCEchelonGraph re-scored
  57. 2026-10-11 16:52 UTCEchelonGraph re-scored
  58. 2026-10-11 14:14 UTCEchelonGraph re-scored
  59. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  60. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  61. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  62. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  63. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  64. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  65. 2026-10-06 03:19 UTCVendor advisory
  66. 2026-10-06 03:19 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  67. 2026-10-06 03:19 UTCVendor advisory
  68. 2026-10-06 03:19 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  69. 2026-10-06 03:18 UTCVendor advisory
  70. 2026-10-06 03:18 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  71. 2026-10-06 02:35 UTCEchelonGraph re-scored
  72. 2026-10-06 02:35 UTCVendor advisory
  73. 2026-10-06 02:35 UTCGHSA enrichmentGHSA-4x46-h598-64qr · GitHub CVSS 6.5
  74. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  75. 2026-10-05 11:30 UTCVendor advisory

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-58013?
CVE-2026-58013 is a high-severity vulnerability; its CVE record was published on June 30, 2026. A flaw was found in GLib. A buffer over-read can occur in g_io_channel_read_line_backend() in the giochannel.c file when a custom line terminator with a length greater than one is set, causing memcmp to read past the GString buffer. This vulnerability can cause a minor information disclosure of 7…
When was CVE-2026-58013 made public?
CVE-2026-58013 was made public on April 3, 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 June 30, 2026. EchelonGraph's copy of the record carries a last-modified date of November 10, 2026; the record at its source may have been updated since.
Is CVE-2026-58013 actively exploited?
CVE-2026-58013 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58013?
CVE-2026-58013 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-58013?
A fix for CVE-2026-58013 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-58013 are linked in the Vendor Advisories panel on this page.

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