CVE-2026-78252

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.3 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an authenticated user could have induced a targeted user to perform unintended state-changing HTTP requests due to improper sanitization of user-controlled data in the Markdown JSON table renderer.

CVSS v3
8.2
EG Score
8.2(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

September 16, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

GitLab Critical Patch Release: 19.3.2, 19.2.6, 19.1.8 | GitLab Docs

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-2-released/
generic

Work items · GitLab.org / GitLab · GitLab

https://gitlab.com/gitlab-org/gitlab/-/work_items/621447

Vendor Advisories for CVE-2026-78252(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 16× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:31 UTCEG score recompute
  2. 2026-09-18 19:31 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 07:32 UTCGHSA enrichment
  5. 2026-09-17 19:33 UTCEG score recompute
  6. 2026-09-17 19:33 UTCGHSA enrichment
  7. 2026-09-17 07:33 UTCGHSA enrichment
  8. 2026-09-16 19:33 UTCGHSA enrichment
  9. 2026-09-16 16:39 UTCEG score recompute
  10. 2026-09-16 16:38 UTCGHSA enrichment
  11. 2026-09-16 15:50 UTCEG score recompute
  12. 2026-09-16 15:50 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 07:19 UTCEG score recompute
  15. 2026-09-16 06:37 UTCEG score recompute
  16. 2026-09-16 06:37 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78252?
CVE-2026-78252 is a high vulnerability published on September 16, 2026. GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.3 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an authenticated user could have induced a targeted user to perform unintended state-changing HTTP requests due to improper…
When was CVE-2026-78252 disclosed?
CVE-2026-78252 was first published in the National Vulnerability Database on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78252 actively exploited?
CVE-2026-78252 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.9% of all scored CVEs.
What is the CVSS score of CVE-2026-78252?
CVE-2026-78252 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-78252?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78252, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-78252

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