CVE-2021-39938

mediumpriority · track · 26EPSS 0.009 · 60 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.92% (60th) EPSS

CVSS 4 · medium

Is it mine?

16 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

A vulnerable regular expression pattern in GitLab CE/EE since version 8.15 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker to cause uncontrolled resource consumption leading to Denial of Service via specially crafted deploy Slash commands

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.1–6.5

v2.04mediumAV:N/AC:L/Au:S/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.13.1lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.13.1lowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Lsecondary · cve@gitlab.comexploitability 1.6 · impact 1.4

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimary

affected products (16)

Products and version ranges known to be affected.

Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
Open Source GitLab <14.3.6all versionscert_bundDE
Open Source GitLab <14.4.4all versionscert_bundDE
Open Source GitLab <14.5.2all versionscert_bundDE
Open Source GitLab< 14.3.6cert_bundDE
Open Source GitLab< 14.4.4cert_bundDE
Open Source GitLab< 14.5.2cert_bundDE
GitLab GitLab14.4, → 14.4.4enisa_euvdEU
GitLab GitLab14.5, → 14.5.2enisa_euvdEU
GitLab GitLab8.15, → 14.3.6enisa_euvdEU
gitlab gitlab14.4.0 → 14.4.4nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab14.5.0 → 14.5.2nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab8.15.0 → 14.3.6nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab14.4.0 → 14.4.4osvUSpkg:bitnami/gitlab
Bitnami gitlab14.5.0 → 14.5.2osvUSpkg:bitnami/gitlab
Bitnami gitlab8.15.0 → 14.3.6osvUSpkg:bitnami/gitlab

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0292GitLab: Mehrere SchwachstellenDeutsch2021-12-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um seine Privilegien zu erhöhen, Informationen offenzulegen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service zu verursachen.
BIT-gitlab-2021-399382024-03-06vendor · osvUS
A vulnerable regular expression pattern in GitLab CE/EE since version 8.15 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker to cause uncontrolled resource consumption leading to Denial of Service via specially crafted deploy Slash commands

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2021-12-13modified 2026-06-17

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references (10)

External citations — patches, advisories, analysis.

scry

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