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CVE-2023-3443

Incorrect Authorization in GitLab

Description

An issue has been discovered in GitLab affecting all versions starting from 12.1 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for a Guest user to add an emoji on confidential work items.

Public exploit

An exploit or proof of concept is public: anyone can try it against an unpatched system. A reference of the record is tagged as an exploit.

Show the exploits1

References tagged exploit1 reference

Timeline

  1. ID reserved

    By GitLab

  2. · 5 months later

    Published

  3. · 3 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-3443, by who scored it
Scored byCVSSScoreVector
GitLabCNA (assigner)3.1Low3.1CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
NVDNVD · Modified3.1Medium4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS (exploitation in 30 days)
0.40% · top 65% of all CVEs (12 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.1.

Affected products

  • GitLab · GitLab

    • affected 12.1 – < 16.4.3
    • affected 16.5 – < 16.5.3
    • affected 16.6 – < 16.6.1

What to do

Solution: Upgrade to versions 16.4.3, 16.5.3, 16.6.1 or above.

References

References2

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2023-3443 badge
[![CVE-2023-3443](https://cveledger.app/badge/CVE-2023-3443.svg)](https://cveledger.app/cve/CVE-2023-3443)

Record last updated .