CVE-2026-92883

highpriority · track · 0EPSS 0.005 · 41 %ileDENLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.48% (41st) EPSS

CVSS 8.7 · high

Is it mine?

16 products

Check your exposure

Who says so?

5 sources

fstec_bdu · cert_bund · ncsc_nl · nvd

EPSS · scored 2026-10-27

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browser sessions via a specially crafted repository, due to improper sanitization of HTML attributes in syntax-highlighted output.

cvss

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.7highAV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · cve@gitlab.comexploitability 2.3 · impact 5.8

v3.18highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79USCWE-79US

affected products (16)

Products and version ranges known to be affected.

Open Source GitLab< 19.2.8cert_bundDE
Open Source GitLab< 19.3.4cert_bundDE
Open Source GitLab< 19.4.2cert_bundDE
Open Source Open Source GitLab <19.2.8< 19.2.8cert_bundDE
Open Source Open Source GitLab <19.3.4< 19.3.4cert_bundDE
Open Source Open Source GitLab <19.4.2< 19.4.2cert_bundDE
GitLab Inc. Gitlab19.1.0 → 19.2.8fstec_bduRU
GitLab Inc. Gitlab19.3.0 → 19.3.5fstec_bduRU
GitLab Inc. Gitlab19.4.0 → 19.4.2fstec_bduRU
GitLab GitLab≤ vers:unknown/*ncsc_nlNL
gitlab gitlab19.1.0 → 19.2.8nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab19.3.0 → 19.3.5nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab19.4.0 → 19.4.2nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab19.1.0 → 19.2.8osvUSpkg:bitnami/gitlab
Bitnami gitlab19.3.0 → 19.3.5osvUSpkg:bitnami/gitlab
Bitnami gitlab19.4.0 → 19.4.2osvUSpkg:bitnami/gitlab

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0414Kwetsbaarheden verholpen in GitLabNL2026-10-13csaf · ncsc_nlNL
GitLab heeft kwetsbaarheden verholpen in GitLab Community Edition (CE) en Enterprise Edition (EE), specifiek in versies voorafgaand aan 19.2.8, 19.3.5 en 19.4.2.
WID-SEC-W-2026-3858GitLab: Mehrere SchwachstellenDeutsch2026-10-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um beliebigen Programmcode auszuführen, um Informationen offenzulegen, um Daten zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um Sicherheitsvorkehrungen zu umgehen.
BIT-gitlab-2026-92883Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab2026-10-16vendor · osvUS
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to execute arbitrary JavaScript in the context of other users' browser sessions via a specially crafted repository, due to improper sanitization of HTML attributes in syntax-highlighted output.

also known as (1)

Other names and identifiers for this entity.

BDU:2026-16608 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu cert_bund ncsc_nl nvd osv NVD CVE.org MITRE

published 2026-10-13modified 2026-10-16

references (3) nvd

External citations — patches, advisories, analysis.

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/Release NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/629523Issue Tracking
https://hackerone.com/reports/3936831Permissions Required

scry

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