CVE-2026-74860

HIGHPre-NVD 8.58.5
EchelonGraph scoreMEDIUM confidence

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

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. A secondary CVSS source baseline 8.5; sources differ by 0.0.

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

Also known asEUVD-2026-72691 (ENISA EUVD) · GHSA-8626-cqqj-mfff (GitHub Security Advisories)Source: ENISA EUVD

8.5EG
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: 8.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl callback handler, where a string is freed twice. This flaw can lead to a denial of service (DoS) due to a reproducible crash in Python applications using the libxml2 SAX bindings.

CVSS v3
8.5
EG Score
8.5HIGHmedium confidence
EG Risk
39
EG Risk 39/100

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)
Severity85% × 45%
Impact severity (EG Severity): CVSS 8.5 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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
51st
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 (8.5): severity, escalated by confirmed exploitation. This CVE's 8.5 is its impact severity (EG Severity), not escalated.

EG Severity
8.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
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 low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 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 none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 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 total (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

September 8, 2026

Last Modified

November 11, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

CVE-2026-74860 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-74860

Patch Availability(29)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatlibxml2-0:2.12.5-15.el10_3.22026-11-11redhat
redhatrhai/base-image-cuda-13.0-rhel9:17933268372026-11-03redhat
redhatrhai/base-image-cpu-rhel9:17933297092026-11-03redhat
redhatrhai/base-image-cuda-rhel9:17933283582026-11-03redhat
redhatrhai/base-image-cuda-12.9-rhel9:17933276602026-11-03redhat
redhatlibxml2-0:2.9.1-6.el7_9.202026-11-02redhat
redhatlibxml2-0:2.9.7-16.el8_8.242026-11-02redhat
redhatlibxml2-0:2.9.7-9.el8_4.202026-11-02redhat
redhatlibxml2-0:2.9.13-3.el9_2.202026-10-29redhat
redhatlibxml2-0:2.9.7-13.el8_6.242026-10-29redhat
redhatrhai/base-image-rocm-6.4-rhel9:17930419952026-10-27redhat
redhatrhai/base-image-spyre-rhel9:17930420742026-10-27redhat
redhatrhai/base-image-cpu-rhel9:17930421622026-10-27redhat
redhatrhai/base-image-tpu-rhel9:17930420062026-10-27redhat
redhatrhai/base-image-cuda-13.0-rhel9:17930420862026-10-27redhat
redhatrhai/base-image-rocm-7.1-rhel9:17930420062026-10-27redhat
redhatrhai/base-image-tpu-rhel9:17930420102026-10-27redhat
redhatrhai/base-image-spyre-rhel9:17930419862026-10-27redhat
redhatrhai/base-image-cuda-rhel9:17930420672026-10-27redhat
redhatrhai/base-image-gaudi-rhel9:17930420112026-10-27redhat
redhatrhai/base-image-neuron-rhel9:17930420082026-10-27redhat
redhatrhai/base-image-rocm-rhel9:17930419812026-10-27redhat
redhatrhai/base-image-spyre-rhel9:17930421142026-10-27redhat
redhatrhai/base-image-rocm-7.14-rhel9:17930420242026-10-27redhat
redhatrhai/base-image-cuda-12.9-rhel9:17930421452026-10-27redhat
redhatrhai/base-image-cuda-12.9-rhel9:17930421172026-10-27redhat
redhatrhai/base-image-tpu-rhel9:17930419872026-10-27redhat
redhatrhai/base-image-gaudi-rhel9:17930420042026-10-27redhat
redhatrhai/base-image-cuda-13.0-rhel9:17930420932026-10-27redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libxml22.12.3+dfsg-0exp1 ... 2.9.14+dfsg-1.3~deb12u6 (49 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libxml22.12.7+dfsg+really2.9.14-2.1 ... 2.15.4+dfsg-1 (31 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libxml22.12.7+dfsg+really2.9.14-2.1 ... 2.15.2+dfsg-0.1 (26 versions)
  • every version up to 2.15.3+dfsg-1: fixed in 2.15.3+dfsg-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 20× in last 7d / 91× 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 371 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 271 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% · 51st percentile
  2. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  3. 2026-11-11 14:27 UTCEchelonGraph re-scored
  4. 2026-11-11 14:27 UTCVendor advisory
  5. 2026-11-11 14:27 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  6. 2026-11-11 13:29 UTCEchelonGraph re-scored
  7. 2026-11-11 13:29 UTCVendor advisory
  8. 2026-11-11 13:29 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  9. 2026-11-11 12:28 UTCEchelonGraph re-scored
  10. 2026-11-11 12:28 UTCVendor advisory
  11. 2026-11-11 12:28 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  12. 2026-11-11 11:34 UTCEchelonGraph re-scored
  13. 2026-11-11 11:34 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  14. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  15. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  16. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  17. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  18. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  19. 2026-11-06 07:27 UTCEchelonGraph re-scored
  20. 2026-11-06 07:27 UTCVendor advisory
  21. 2026-11-06 07:27 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  22. 2026-11-06 06:38 UTCEchelonGraph re-scored
  23. 2026-11-06 06:38 UTCVendor advisory
  24. 2026-11-06 06:38 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  25. 2026-11-06 06:27 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-11-06 06:27 UTCVendor advisory
  2. 2026-11-06 06:27 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  3. 2026-11-06 06:09 UTCEchelonGraph re-scored
  4. 2026-11-06 06:09 UTCVendor advisory
  5. 2026-11-06 06:09 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  6. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-11-05 00:27 UTCEchelonGraph re-scored
  8. 2026-11-05 00:27 UTCVendor advisory
  9. 2026-11-05 00:27 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  10. 2026-11-04 23:34 UTCEchelonGraph re-scored
  11. 2026-11-04 23:34 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  12. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  13. 2026-11-04 06:27 UTCEchelonGraph re-scored
  14. 2026-11-04 06:27 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  15. 2026-11-04 05:31 UTCEchelonGraph re-scored
  16. 2026-11-04 05:31 UTCVendor advisory
  17. 2026-11-04 05:31 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  18. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  19. 2026-11-03 10:29 UTCEchelonGraph re-scored
  20. 2026-11-03 10:29 UTCVendor advisory
  21. 2026-11-03 10:29 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  22. 2026-11-03 09:58 UTCEchelonGraph re-scored
  23. 2026-11-03 09:58 UTCVendor advisory
  24. 2026-11-03 09:58 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  25. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  26. 2026-11-02 14:27 UTCEchelonGraph re-scored
  27. 2026-11-02 14:27 UTCVendor advisory
  28. 2026-11-02 14:27 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  29. 2026-11-02 13:43 UTCEchelonGraph re-scored
  30. 2026-11-02 13:43 UTCVendor advisory
  31. 2026-11-02 13:42 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  32. 2026-11-02 04:26 UTCEchelonGraph re-scored
  33. 2026-11-02 04:26 UTCVendor advisory
  34. 2026-11-02 04:26 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  35. 2026-11-02 03:47 UTCVendor advisory
  36. 2026-11-02 03:47 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  37. 2026-11-02 03:33 UTCEchelonGraph re-scored
  38. 2026-11-02 03:33 UTCVendor advisory
  39. 2026-11-02 03:33 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  40. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  41. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  42. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  43. 2026-10-30 01:26 UTCEchelonGraph re-scored
  44. 2026-10-30 01:26 UTCVendor advisory
  45. 2026-10-30 01:26 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  46. 2026-10-30 00:46 UTCEchelonGraph re-scored
  47. 2026-10-30 00:46 UTCVendor advisory
  48. 2026-10-30 00:46 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  49. 2026-10-29 20:26 UTCEchelonGraph re-scored
  50. 2026-10-29 20:26 UTCVendor advisory
  51. 2026-10-29 20:26 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  52. 2026-10-29 20:01 UTCEchelonGraph re-scored
  53. 2026-10-29 20:01 UTCVendor advisory
  54. 2026-10-29 20:01 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  55. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  56. 2026-10-29 14:26 UTCEchelonGraph re-scored
  57. 2026-10-29 14:26 UTCVendor advisory
  58. 2026-10-29 14:26 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  59. 2026-10-29 13:48 UTCEchelonGraph re-scored
  60. 2026-10-29 13:48 UTCVendor advisory
  61. 2026-10-29 13:48 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  62. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  63. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  64. 2026-10-26 17:32 UTCEchelonGraph re-scored
  65. 2026-10-26 17:32 UTCVendor advisory
  66. 2026-10-26 17:32 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  67. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  68. 2026-10-26 16:31 UTCEchelonGraph re-scored
  69. 2026-10-26 16:31 UTCVendor advisory
  70. 2026-10-26 16:31 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  71. 2026-10-26 07:26 UTCEchelonGraph re-scored
  72. 2026-10-26 07:26 UTCVendor advisory
  73. 2026-10-26 07:26 UTCGHSA enrichmentGHSA-8626-cqqj-mfff · GitHub severity HIGH · GitHub CVSS 8.5
  74. 2026-10-26 07:11 UTCEchelonGraph re-scored
  75. 2026-10-26 07:11 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-74860?
CVE-2026-74860 is a high-severity vulnerability; its CVE record was published on September 8, 2026. A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl…
When was CVE-2026-74860 made public?
CVE-2026-74860 was made public on March 8, 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 September 8, 2026. EchelonGraph's copy of the record carries a last-modified date of November 11, 2026; the record at its source may have been updated since.
Is CVE-2026-74860 actively exploited?
CVE-2026-74860 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74860?
CVE-2026-74860 has a CVSS base score of 8.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74860?
A fix for CVE-2026-74860 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74860 are linked in the Vendor Advisories panel on this page.

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