CVE-2026-5358: Static buffer overflow in deprecated nis_local_principal
Rejected reason: REJECTED: CVE-2026-5358 is rejected for two reasons. Firstly it has been discovered that no NIS+ client or server was ever released for any Linux-based OS distributions and as such this makes the API provisional and unused. Secondly it has been discovered that the NIS+ cold start cache (/var/nis/NISCOLDSTART) cannot be bypassed and as such the API can only be called with a trusted server from the pre-populated cache. The use of a trusted server means no trust boundary is crossed and this is therefore considered a normal bug.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-5358?
CVE-2026-5358 has a high severity rating due to the potential for buffer overflow attacks.
How do I fix CVE-2026-5358?
To fix CVE-2026-5358, you should upgrade the GNU C Library to a version newer than 2.43.
What is the impact of CVE-2026-5358?
The impact of CVE-2026-5358 includes possible spoofing of UDP responses, which could lead to information disclosure or further system compromise.
Which versions of the GNU C Library are affected by CVE-2026-5358?
CVE-2026-5358 affects GNU C Library versions up to and including 2.43.
Is CVE-2026-5358 exploitable remotely?
Yes, CVE-2026-5358 is exploitable remotely due to its reliance on UDP requests.