CVE-2026-21895

rsa crate has potential panic on a prime being equal to 1

State: Published
Severity: 2.7 Low
Published: Jan 8, 2026
Updated: Jan 8, 2026
Reserved: Jan 5, 2026

Description

The `rsa` crate is an RSA implementation written in rust. Prior to version 0.9.10, when creating a RSA private key from its components, the construction panics instead of returning an error when one of the primes is `1`. Version 0.9.10 fixes the issue.

Scores

CVSS	Score	Vector	Source
4.0	2.7 Low	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U	GitHub_M

Weaknesses

CWE-703 Improper Check or Handling of Exceptional Conditions

Affected Products

Product	Versions
RSARustCrypto	< 0.9.10Affected

References

https://github.com/RustCrypto/RSA/security/advisories/GHSA-9c48-w39g-hm26
https://github.com/RustCrypto/RSA/commit/2926c91bef7cb14a7ccd42220a698cf4b1b692f7

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