CVE-2023-31485

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server,...

5.9 MediumFix available

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.65%Up 0.6 points since Apr 29, 2023

What each source reports

NVD Score used 5.9

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Record: CVE-2023-31485
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-295
Updated: 2026-11-02

CVE List 5.9

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Record: CVE-2023-31485
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-295
Updated: 2026-11-02

EUVDEUVD-2023-35790 5.9

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Record: EUVD-2023-35790
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-c2v8-3552-rp4m 5.9

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server,...

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Record: GHSA-c2v8-3552-rp4m
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-295
Updated: 2026-11-02

OSV 5.9

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Record: CVE-2023-31485
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2023-31485 5.9

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Record: DEBIAN-CVE-2023-31485
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-31485 5.9

GitLab::API::v4 through 0.26 does not verify TLS certificates when connecting to a GitLab server, enabling machine-in-the-middle attacks.

Record: UBUNTU-CVE-2023-31485
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

Affected products

gitlab\ \

Affected packages

Affected packages
Package	Affected	Fixed
`libgitlab-api-v4-perl` Debian:12	All versions, plus listed versions 0.26-30.27-1	None known
`libgitlab-api-v4-perl` Debian:13	before 0.27-1	0.27-1
`libgitlab-api-v4-perl` Debian:14	before 0.27-1	0.27-1
`libgitlab-api-v4-perl` Ubuntu:18.04:LTS	All versions, plus listed versions 0.02-10.03-10.04-10.04-2	None known
`libgitlab-api-v4-perl` Ubuntu:20.04:LTS	All versions, plus listed versions 0.21-10.23-10.25-1	None known
`libgitlab-api-v4-perl` Ubuntu:22.04:LTS	All versions, plus listed versions 0.26-1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-31485 is a medium vulnerability (CVSS 5.9) in Gitlab\ \, published April 28, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.65%, the 51st percentile. Fixed in libgitlab-api-v4-perl 0.27-1.

References

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