CVE-2026-8589

highpriority · track · 35EPSS 0.003 · 17 %ileDEEUNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (17th) EPSS

CVSS 8.7 · high

Is it mine?

17 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.

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

v3.18.7highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 5.8

v3.17.3highCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:Nsecondary · ENISA EU

v3.17.3highCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:Nsecondary · cve@gitlab.comexploitability 1 · 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)

v3.17.3highCVSS:3.1/AV:N/AC:H/PR:H/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-79US

affected products (17)

Products and version ranges known to be affected.

Open Source GitLab <18.10.8all versionscert_bundDE
Open Source GitLab <18.11.5all versionscert_bundDE
Open Source GitLab <19.0.2all versionscert_bundDE
Open Source GitLab< 18.10.8cert_bundDE
Open Source GitLab< 18.11.5cert_bundDE
Open Source GitLab< 19.0.2cert_bundDE
GitLab GitLab13.1.4 → 18.10.8enisa_euvdEU
GitLab GitLab18.11 → 18.11.5enisa_euvdEU
GitLab GitLab19.0 → 19.0.2enisa_euvdEU
GitLab Community Edition, Enterprise Edition≤ vers:unknown/*ncsc_nlNL
Open Source GitLab≤ vers:unknown/*ncsc_nlNL
gitlab gitlab13.1.4 → 18.10.8nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab18.11.0 → 18.11.5nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab19.0.0 → 19.0.2nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab13.1.4 → 18.10.8osvUSpkg:bitnami/gitlab
Bitnami gitlab18.11.0 → 18.11.5osvUSpkg:bitnami/gitlab
Bitnami gitlab19.0.0 → 19.0.2osvUSpkg:bitnami/gitlab

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0196Kwetsbaarheden verholpen in GitLab Enterprise EditionNL2026-06-12csaf · ncsc_nlNL
GitLab heeft meerdere kwetsbaarheden verholpen in GitLab Community Edition en Enterprise Edition (EE) versies variërend van 12.0 tot voor 19.0.2, inclusief belangrijke releases zoals 17.x, 18.10.8, 18.11.5 en 19.0.2.
WID-SEC-W-2026-1886GitLab: Mehrere SchwachstellenDeutsch2026-06-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren, serverseitige Request-Forgery- und Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
BIT-gitlab-2026-8589Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab2026-06-12vendor · osvUS
GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl nvd osv NVD CVE.org MITRE

published 2026-06-11modified 2026-06-17

references (8)

External citations — patches, advisories, analysis.

scry

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