🛡️ CVE-2026-43863

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2026-43863 is classified as CWE-253: Incorrect Check of Function Return Value. The product incorrectly checks a return value from a function, which prevents it from detecting errors or exceptional conditions.

Affected software

CVE-2026-43863 is recorded against 1 package.

• unknown

Timeline and source

Published on 4 May 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com

Other advisories for this package

unknown has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2022-4995 (9.8 Critical, published 7 Aug 2026)
• CVE-2022-4994 (published 30 Jul 2026)
• CVE-2023-49900 (9.8 Critical, published 16 Jul 2026)
• CVE-2023-49899 (9.8 Critical, published 16 Jul 2026)
• CVE-2022-4989 (published 3 Jul 2026)
• CVE-2022-4990 (published 3 Jul 2026)
• CVE-2022-50973 (9.8 Critical, published 2 Jul 2026)
• CVE-2023-20572 (published 26 Jun 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-253: Incorrect Check of Function Return Value) in other software:

• CVE-2026-59847 (5.9 Medium, published 21 Jul 2026)
• CVE-2026-5818 (published 24 Jun 2026)
• CVE-2026-53090 (7.8 High, published 24 Jun 2026)
• CVE-2026-46419 (7.5 High, published 14 May 2026)
• CVE-2026-35340 (5.5 Medium, published 22 Apr 2026)
• CVE-2026-35339 (5.5 Medium, published 22 Apr 2026)
• CVE-2026-35091 (8.2 High, published 1 Apr 2026)
• CVE-2026-0648 (7.8 High, published 27 Jan 2026)

CVE-2026-43863 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References