Low 2.7Published Jan 8, 2026

CVE-2026-21895rsa crate has potential panic on a prime being equal to 1

Updated under an hour ago (Oct 27, 2026, 4:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for RustCrypto RSA

Exploited in the last 30 days

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.

CVSS: 2.7 LOW (v4.0, CNA)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
Weakness (CWE): CWE-703
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jan 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

RustCrypto RSA rustcrypto:rsa (from the name)	before 0.9.10	CNA record
rustcrypto rsa rustcrypto:rsa	before 0.9.10	NVD

References

References

https://github.com/RustCrypto/RSA/security/advisories/GHSA-9c48-w39g-hm26	x-refsource-confirm, vendor-advisory
https://github.com/RustCrypto/RSA/commit/2926c91bef7cb14a7ccd42220a698cf4b1b692f7	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.