CVE-2026-41677CRITICAL 9.1EPSS p20.9%
CVE-2026-41677CVE-2026-41677
Description
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length returned by the user's callback. A password callback that returns a value larger than the buffer it was given can cause some versions of OpenSSL to over-read this buffer. OpenSSL 3.x is not affected by this. This vulnerability is fixed in 0.10.78.
Scoring
| CVSS 3.1 | 9.1 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| EPSS | 0.29% probability of exploitation · percentile 20.9% · 2026-06-18T12:00:27Z |
| Published | 2026-04-24 |
| Last modified | 2026-04-28 |
Underlying weaknesses· 2
References
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Out-of-bounds Readcwe-125 | 0% | live |
| Weakness | Improper Validation of Specified Quantity in Inputcwe-1284 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.