CVE-2026-41677: rust-openssl: Out-of-bounds read in PEM password callback when user callback returns an oversized length
Affected: rust-openssl · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 22% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- rust-openssl · rust-openssl>= 0.9.0, < 0.10.78
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- rust-openssl
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-41677 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.