No exploitation reportedFix available

CVE-2019-19313

Q: Is CVE-2019-19313 actively exploited?

Active exploitation of CVE-2019-19313 has not been confirmed. Its EPSS score was 1.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-19313?

CVE-2019-19313 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2020-01-05
Fixed in12.5.2 · 12.4.5 · 12.3.8
WeaknessCWE-755

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

GitLab EE 12.3 through 12.5, 12.4.3, and 12.3.6 allows Denial of Service. Certain characters were making it impossible to create, edit, or view issues and commits.

Timeline

dates in UTC

2020-01-0522:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-19313?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-19313?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

GitLab

Branch	Affected	Fixed in	Source
12.5	≥ 12.5.0, < 12.5.2	12.5.2	NVD
12.4	≥ 12.4.0, < 12.4.5	12.4.5	NVD
12.3	≥ 12.3.0, < 12.3.8	12.3.8	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update GitLab to 12.5.2 · 12.4.5 · 12.3.8

Advisories and patches

about.gitlab.comVendor Advisory
about.gitlab.comRelease Notes

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-755read 2026-10-23
FIRST EPSSEPSS score1.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2020-01-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-19313?

GitLab EE 12.3 through 12.5, 12.4.3, and 12.3.6 allows Denial of Service. Certain characters were making it impossible to create, edit, or view issues and commits.

Is CVE-2019-19313 actively exploited?

Active exploitation of CVE-2019-19313 has not been confirmed. Its EPSS score was 1.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19313?

CVE-2019-19313 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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