VulnSocial

CVE-2026-5816Patch(gitlab / gitlab)

LOWCVSS 8.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch gitlab gitlab systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.

gitlab CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-41

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • gitlab

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 2d ago at 1 mentions (2026-04-22); latest day: 1
  • 3 total mentions across 3 days

Affected systems

Vendors
gitlab
Products
gitlab

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 3d
00111Mentions · 2026-04-22: 1Mentions · 2026-04-28: 1Mentions · 2026-04-30: 1Patch / Workaround · 2026-04-22: 1Patch / Workaround · 2026-04-30: 1Technical Details · 2026-04-22: 1Technical Details · 2026-04-30: 104-2204-2804-30
Signal classification2 categories
Patch
266.7%
Disclosure
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-221
Patch1
2026-04-281
Disclosure1
2026-04-301
Patch1
Full discourse3 posts
  • iototsecnews@iototsecnews
    Patch

    GitLab CE／EE の脆弱性 CVE-2026-4922／5816／5262：ユーザーセッションが乗っ取りの可能性 https://iototsecnews.jp/2026/04/23/gitlab-fixes-flaws-that-could-allow-attackers-to-hijack-user-sessions/ 今回の脆弱性は、主にシステムの入力検証の不備や、パスの確認不足が原因で発生しています。たとえば CVE-2026-5816 や CVE-2026-5262 では、外部からの入力を正しくチェックできなかったことで、悪意のプログラム実行や情報の露出を招いてしまいました。また CVE-2026-4922 のような API の制御不備や、CVE-2026-6515 のような認証情報の管理ミスも深刻なリスクにつながります。これらは小さなミスに見えますが、攻撃者に悪用されるとシステム全体の権限を奪われる恐れがあります。ご利用のチームは、ご注意ください。 #CVE20264922 #CVE20265262 #CVE20265816 #GitLab #Vulnerability

    Post summary

    The post announces GitLab’s release of fixes for CVE-2026-4922, 5816, and 5262, providing technical details on the nature of the vulnerabilities and confirming that vendors have patched them.

    01000137
    485 followersView on X
  • CERT-PY@CERTpy
    Disclosure

    ⚠️ Vulnerabilidades en productos GitLab ❗ CVE-2026-5816 ❗ CVE-2026-5262 ❗ CVE-2026-4922 ➡️ Más info: https://www.cert.gov.py/vulnerabilidades-en-productos-gitlab-10/ https://t.co/qTwJBqa4lR

    Post summary

    The post lists three GitLab CVE identifiers and links to a CERT page for further information, but it provides no technical, exploit, or mitigation details.

    00000121
    6.7K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-5816 GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user… https://www.cve.org/CVERecord?id=CVE-2026-5816

    Post summary

    GitLab announced a remediation for CVE‑2026‑5816, impacting versions 18.10 and 18.11, with a patch available to address the unauthenticated vulnerability.

    00000137
    57.2K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appgitlabgitlab---
Appgitlabgitlab---
Appgitlabgitlab18.11.0--
Appgitlabgitlab18.11.0--

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