Description
Botan is a C++ cryptography library. In 3.11.0, the function Certificate_Store::certificate_known had a misleading name; it would return true if any certificate in the store had a DN (and subject key identifier, if set) matching that of the argument. It did not check that the cert it found and the cert it was passed were actually the same certificate. In 3.11.0 an extension of path validation logic was made which assumed that certificate_known only returned true if the certificates were in fact identical. The impact is that if an end entity certificate is presented, and its DN (and subject key identifier, if set) match that of any trusted root, the end entity certificate is accepted immediately as if it itself were a trusted root. , This vulnerability is fixed in 3.11.1.
INFO
Published Date :
2026-04-07T21:12:09.604Z
Last Modified :
2026-04-09T03:56:10.769Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-34580 vulnerability.
| Vendors | Products |
|---|---|
| Randombit |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34580.
