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Fencer Vulns
medium 4.3

CVE-2024-1347 json

Authentication Bypass by Spoofing in GitLab

published 2024-04-25 2 y ago modified 2026-09-10 1 mo ago also BIT-gitlab-2024-1347 , EUVD-2024-17104

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

An issue has been discovered in GitLab CE/EE affecting all versions before 16.9.6, all versions starting from 16.10 before 16.10.4, all versions starting from 16.11 before 16.11.1. Under certain conditions, an attacker through a crafted email address may be able to bypass domain based restrictions on an instance or a group.

Patch / fix

  • bitnami gitlab 16.9.6, 16.10.4, 16.11.1
  • GitLab GitLab 16.9.6, 16.10.4, 16.11.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-1347 updated cvss 4.3

gitlab: bypass domain based restrictions on an instance or a group by a crafted email

  • Red Hat OpenShift Container Platform 4 openshift4/ose-console
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/2355565 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
OSV 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami gitlab
<16.9.6
>=16.10.0, <16.10.4
>=16.11.0, <16.11.1
16.9.6
16.10.4
16.11.1

Affected products

  • GitLab GitLab

Classification

Weakness
  • CWE-290 Authentication Bypass by Spoofing
Technology feeds

References

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.