CVE-2026-110264

CRITICALPre-NVD 10.010.0
EchelonGraph scoreHIGH confidence

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

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-10-22. A secondary CVSS source baseline 10.0; 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-2026-107696 (ENISA EUVD) · GHSA-83vq-rvff-66gw (GitHub Security Advisories)Source: ENISA EUVD

10.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 1.3%CVSS: 10.0Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

Fixed versions, as the CVE record's CNA (GitLab Inc.) states them: "Upgrade to versions 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3, 19.5.1, or later."

An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.

CVSS v3
10.0
EG Score
10.0CRITICALhigh confidence
EG Risk
76
EG Risk 76/100

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)
Severity100% × 45%
Impact severity (EG Severity): CVSS 10.0 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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
1.3%
EPSS %ILE
71st
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 (10.0): severity, escalated by confirmed exploitation. This CVE's 10.0 is its impact severity (EG Severity), not escalated.

EG Severity
10.0 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.3% 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; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

October 22, 2026

Last Modified

November 4, 2026

Advisory Details (3)

Auto-updated Nov 6, 2026
Patch available.
Web page

Regexp compilation fixes related to GitLab's CVE-2026-89078, CVE-2026-93577, CVE-2026-97229 and CVE-2026-110264 | Ruby

https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/
Web page

GitLab Critical Patch Release: 19.5.1, 19.4.3, 19.3.6, 19.2.9, 19.1.9, 19.0.10, 18.11.13 | GitLab Docs

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/
Web page

Work items · GitLab.org / GitLab · GitLab

https://gitlab.com/gitlab-org/gitlab/-/work_items/633633

Patch Availability(10)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatruby:3.3-9080020261105110750.92026-11-09redhat
redhatruby:4.0-9080020261105110139.92026-11-09redhat
redhatruby-0:3.3.13-16.el10_22026-11-09redhat
redhatruby4.0-0:4.0.9-38.el10_22026-11-09redhat
redhatruby-0:3.0.7-170.el9_82026-11-09redhat
redhatopenvox-agent-0:8.32.0-1.el9sat2026-11-05redhat
redhatpython-pyyaml-0:6.0.1-1.el9pc2026-11-05redhat
redhatruby3-3-main-3.3.13-23.8.hum12026-10-24redhat
redhatruby4-0-main-4.0.9-41.hum12026-10-24redhat
redhatruby3-4-main-3.4.12-33.1.hum12026-10-23redhat

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

(7 across 7 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • every version up to 3.3.13-r0: fixed in 3.3.13-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • every version up to 3.4.12-r0: fixed in 3.4.12-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • every version up to 3.4.12-r0: fixed in 3.4.12-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
ruby—
  • every version up to 3.4.12-r0: fixed in 3.4.12-r0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
ruby3.13.1.2-7 ... 3.1.2-8.5 (8 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
ruby3.33.3.8-2, 3.3.8-2.1, 3.3.8-2.2
  • every version up to 3.3.13-0+deb13u1: fixed in 3.3.13-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
ruby3.33.3.8-2, 3.3.8-2.1, 3.3.8-2.2
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 74× 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 104 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 4 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 17:33 UTCEchelonGraph re-scored
  2. 2026-11-12 17:33 UTCVendor advisory
  3. 2026-11-12 17:33 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  4. 2026-11-12 16:32 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  5. 2026-11-11 18:17 UTCEchelonGraph re-scored
  6. 2026-11-11 18:17 UTCVendor advisory
  7. 2026-11-11 18:17 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  8. 2026-11-11 16:37 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  9. 2026-11-10 19:01 UTCEchelonGraph re-scored
  10. 2026-11-10 19:01 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  11. 2026-11-10 16:41 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  12. 2026-11-09 19:45 UTCEchelonGraph re-scored
  13. 2026-11-09 19:45 UTCVendor advisory
  14. 2026-11-09 19:45 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  15. 2026-11-09 16:34 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  16. 2026-11-08 20:30 UTCEchelonGraph re-scored
  17. 2026-11-08 20:30 UTCVendor advisory
  18. 2026-11-08 20:30 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  19. 2026-11-08 16:38 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  20. 2026-11-07 21:13 UTCEchelonGraph re-scored
  21. 2026-11-07 21:12 UTCVendor advisory
  22. 2026-11-07 21:12 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  23. 2026-11-07 16:38 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  24. 2026-11-06 21:57 UTCEchelonGraph re-scored
  25. 2026-11-06 21:57 UTCVendor advisory
Show 75 more
  1. 2026-11-06 21:57 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  2. 2026-11-06 16:35 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  3. 2026-11-05 22:55 UTCOSV refresh
  4. 2026-11-05 22:42 UTCEchelonGraph re-scored
  5. 2026-11-05 22:42 UTCVendor advisory
  6. 2026-11-05 22:42 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  7. 2026-11-05 16:36 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  8. 2026-11-04 23:26 UTCVendor advisory
  9. 2026-11-04 23:26 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  10. 2026-11-04 20:59 UTCEchelonGraph re-scored
  11. 2026-11-04 20:59 UTCVendor advisory
  12. 2026-11-04 20:59 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  13. 2026-11-04 16:34 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  14. 2026-11-03 21:43 UTCEchelonGraph re-scored
  15. 2026-11-03 21:43 UTCVendor advisory
  16. 2026-11-03 21:43 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  17. 2026-11-03 16:46 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  18. 2026-11-02 22:27 UTCEchelonGraph re-scored
  19. 2026-11-02 22:27 UTCVendor advisory
  20. 2026-11-02 22:27 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  21. 2026-11-02 16:43 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  22. 2026-11-01 22:58 UTCEchelonGraph re-scored
  23. 2026-11-01 22:58 UTCVendor advisory
  24. 2026-11-01 22:58 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  25. 2026-10-31 23:42 UTCEchelonGraph re-scored
  26. 2026-10-31 23:42 UTCVendor advisory
  27. 2026-10-31 23:42 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  28. 2026-10-31 16:31 UTCEPSS rescoreEPSS 1.3% · 71st percentile
  29. 2026-10-31 00:27 UTCEchelonGraph re-scored
  30. 2026-10-31 00:27 UTCVendor advisory
  31. 2026-10-31 00:26 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  32. 2026-10-30 23:29 UTCEchelonGraph re-scored
  33. 2026-10-30 23:29 UTCVendor advisory
  34. 2026-10-30 23:29 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  35. 2026-10-30 17:27 UTCEchelonGraph re-scored
  36. 2026-10-30 17:27 UTCVendor advisory
  37. 2026-10-30 17:27 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  38. 2026-10-30 16:33 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  39. 2026-10-30 16:25 UTCVendor advisory
  40. 2026-10-30 16:25 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  41. 2026-10-30 12:35 UTCEchelonGraph re-scored
  42. 2026-10-30 12:35 UTCVendor advisory
  43. 2026-10-30 12:35 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  44. 2026-10-29 16:32 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  45. 2026-10-29 13:17 UTCEchelonGraph re-scored
  46. 2026-10-29 13:17 UTCVendor advisory
  47. 2026-10-29 13:17 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  48. 2026-10-28 16:31 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  49. 2026-10-28 14:00 UTCEchelonGraph re-scored
  50. 2026-10-28 14:00 UTCVendor advisory
  51. 2026-10-28 14:00 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  52. 2026-10-27 16:31 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  53. 2026-10-27 14:28 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  54. 2026-10-27 00:38 UTCEchelonGraph re-scored
  55. 2026-10-27 00:37 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  56. 2026-10-26 16:30 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  57. 2026-10-25 21:43 UTCEchelonGraph re-scored
  58. 2026-10-25 21:43 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  59. 2026-10-25 16:32 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  60. 2026-10-25 14:52 UTCEchelonGraph re-scored
  61. 2026-10-24 22:13 UTCEchelonGraph re-scored
  62. 2026-10-24 22:13 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  63. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  64. 2026-10-23 22:57 UTCEchelonGraph re-scored
  65. 2026-10-23 22:57 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  66. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  67. 2026-10-22 23:28 UTCEchelonGraph re-scored
  68. 2026-10-22 23:28 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  69. 2026-10-22 23:11 UTCEchelonGraph re-scored
  70. 2026-10-22 23:11 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  71. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  72. 2026-10-22 16:26 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  73. 2026-10-22 13:28 UTCEchelonGraph re-scored
  74. 2026-10-22 13:28 UTCGHSA enrichmentGHSA-83vq-rvff-66gw · GitHub severity CRITICAL · GitHub CVSS 10.0
  75. 2026-10-22 12:56 UTCEchelonGraph re-scored

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCal4n4n/CVE-2026-110264
    Published Oct 22, 2026

    CVE-2026-110264: GitLab pre-auth RCE via Onigmo integer overflow in org-ruby. Docker-based validation, admin check script, attack surface analysis.

    Open source ↗

Frequently asked(5)

What is CVE-2026-110264?
CVE-2026-110264 is a critical-severity vulnerability; its CVE record was published on October 22, 2026. An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to…
When was the CVE record for CVE-2026-110264 published?
The CVE record for CVE-2026-110264 was published on October 22, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 4, 2026; the record at its source may have been updated since.
Is CVE-2026-110264 actively exploited?
CVE-2026-110264 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.3% probability of exploitation in the next 30 days (71st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-110264?
CVE-2026-110264 has a CVSS base score of 10.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-110264?
A fix for CVE-2026-110264 is available: update to the fixed version the vendor names in its advisory. Fixed versions, as the CVE record's CNA (GitLab Inc.) states them: "Upgrade to versions 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3, 19.5.1, or later." The vendor advisories EchelonGraph has for CVE-2026-110264 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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