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Fencer Intel
medium 5.0

CVE-2026-3848 json

Improper Neutralization of CRLF Sequences ('CRLF Injection') in GitLab

published 7mo ago modified 2mo ago also BIT-gitlab-2026-3848 , EUVD-2026-11208

cvss
5.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits
0
none known

Summary

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.11 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to make unintended internal requests through proxy environments under certain conditions due to improper input validation in import functionality.

Patch / fix

  • bitnami gitlab 18.7.6, 18.8.6, 18.9.2
  • GitLab GitLab 18.7.6, 18.8.6, 18.9.2

Is CVE-2026-3848 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
7mo ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
OSV 3.1 5.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami gitlab
>=8.11.0, <18.7.6
>=18.8.0, <18.8.6
>=18.9.0, <18.9.2
18.7.6
18.8.6
18.9.2

Affected products

  • GitLab GitLab

Classification

Weakness
  • CWE-93 Improper Neutralization of CRLF Sequences
Technology feeds

References

Sources

Fencer Intel 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.