HighGHSA-3qpq-r242-jqj7CVE-2026-44167
phpseclib has a CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()
Published 5 May 2026 · Updated 10 Sept 2026
Affected packages
phpseclib/phpseclibComposer
- Affected
- >=0.1.1 <1.0.29
- Fixed in
- 1.0.29
Update to the fixed version for your release line, for example:
composer require phpseclib/phpseclib:^1.0.29phpseclib/phpseclibComposer
- Affected
- >=2.0.0 <2.0.54
- Fixed in
- 2.0.54
Update to the fixed version for your release line, for example:
composer require phpseclib/phpseclib:^2.0.54phpseclib/phpseclibComposer
- Affected
- >=3.0.0 <3.0.52
- Fixed in
- 3.0.52
Update to the fixed version for your release line, for example:
composer require phpseclib/phpseclib:^3.0.52Details
Impact
Anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc)
Patches
https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc
Workarounds
No.
References
https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc
Is GHSA-3qpq-r242-jqj7 in any of your client repos?
Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected phpseclib/phpseclib, and gives you the command that fixes it.
References
Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.