Improper Neutralization of Input Used for LLM Prompting in GitLab

published 2025-02-13 20 mo ago modified 2026-09-10 59 d ago also BIT-gitlab-2024-3303 , EUVD-2024-31893

cvss: 6.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits: 0; none known

An issue was discovered in GitLab EE affecting all versions starting from 16.0 prior to 17.6.5, starting from 17.7 prior to 17.7.4, and starting from 17.8 prior to 17.8.2, which allows an attacker to exfiltrate contents of a private issue using prompt injection.

Patch / fix

fixed in 2

bitnami gitlab 17.8.2
GitLab GitLab 17.6.5, 17.7.4, 17.8.2

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 20 mo ago (2025-02-13)

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

hackerone.com https://hackerone.com/reports/2418620 referenced PoC, tagged "exploit" by a source, unverified
gitlab.com https://gitlab.com/gitlab-org/gitlab/-/issues/454460 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.4	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
NVD	3.1	5.7	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
OSV	3.1	6.4	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	gitlab	>=16.0.0, <17.8.2	17.8.2

Affected products

GitLab GitLab

Classification

Weakness

CWE-1427 Improper Neutralization of Input Used for LLM Prompting

Technology feeds

GitLab rss critical rss

References

hackerone.com /reports/2418620
technical-description, exploit, permissions-required, web
gitlab.com /gitlab-org/gitlab/-/issues/454460
issue-tracking, permissions-required, exploit, evidence
nvd.nist.gov /vuln/detail/CVE-2024-3303
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary