GHSA-87mp-xc4x-x8rh
asymmetricrypt/asymmetricrypt Padding Oracle Vulnerability in RSA Encryption
The encryption and decryption process were vulnerable against the Bleichenbacher's attack, which is a padding oracle vulnerability disclosed in the 98'. The issue was about the wrong padding utilized, which allowed to retrieve the encrypted content. The OPENSSL_PKCS1_PADDING version, aka PKCS v1.5 was vulnerable (is the one set by default when using openssl_* methods), while the PKCS v2.0 isn't anymore (it's also called OAEP).
A fix for this vulnerability was merged at https://github.com/Cosmicist/AsymmetriCrypt/pull/5/commits/a0318cfc5022f2a7715322dba3ff91d475ace7c6.
What each source reports
GitHub AdvisoriesNo score
asymmetricrypt/asymmetricrypt Padding Oracle Vulnerability in RSA Encryption
The encryption and decryption process were vulnerable against the Bleichenbacher's attack, which is a padding oracle vulnerability disclosed in the 98'. The issue was about the wrong padding utilized, which allowed to retrieve the encrypted content. The OPENSSL_PKCS1_PADDING version, aka PKCS v1.5 was vulnerable (is the one set by default when using openssl_* methods), while the PKCS v2.0 isn't anymore (it's also called OAEP).
A fix for this vulnerability was merged at https://github.com/Cosmicist/AsymmetriCrypt/pull/5/commits/a0318cfc5022f2a7715322dba3ff91d475ace7c6.
- Record
GHSA-87mp-xc4x-x8rh- Weakness
- CWE-327
- Updated
- 2026-11-02
OSVNo score
asymmetricrypt/asymmetricrypt Padding Oracle Vulnerability in RSA Encryption
The encryption and decryption process were vulnerable against the Bleichenbacher's attack, which is a padding oracle vulnerability disclosed in the 98'. The issue was about the wrong padding utilized, which allowed to retrieve the encrypted content. The OPENSSL_PKCS1_PADDING version, aka PKCS v1.5 was vulnerable (is the one set by default when using openssl_* methods), while the PKCS v2.0 isn't anymore (it's also called OAEP).
A fix for this vulnerability was merged at https://github.com/Cosmicist/AsymmetriCrypt/pull/5/commits/a0318cfc5022f2a7715322dba3ff91d475ace7c6.
- Record
GHSA-87mp-xc4x-x8rh- Weakness
- CWE-327
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
asymmetricrypt/asymmetricryptPackagist | through 0.3.0 | None known |
asymmetricrypt/asymmetricryptPackagist | through 0.3.0, plus listed versions 0.1.00.2.00.2.1 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-87mp-xc4x-x8rh is a vulnerability with no CVSS score yet in asymmetricrypt/asymmetricrypt, published May 15, 2024. No source lists public exploit code. No source names a fixed version.