High severity7.5NVD Advisory· Published Apr 6, 2021· Updated Jun 17, 2026
CVE-2021-30130
CVE-2021-30130
Description
phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
phpseclib/phpseclibPackagist | >= 3.0.0, < 3.0.7 | 3.0.7 |
phpseclib/phpseclibPackagist | < 2.0.31 | 2.0.31 |
Affected products
4- phpseclib/phpseclibdescription
Patches
Vulnerability mechanics
References
8- github.com/phpseclib/phpseclib/pull/1635nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-vf4w-fg7r-5v94ghsaADVISORY
- github.com/phpseclib/phpseclib/releases/tag/2.0.31nvdRelease NotesThird Party AdvisoryWEB
- github.com/phpseclib/phpseclib/releases/tag/3.0.7nvdRelease NotesThird Party AdvisoryWEB
- lists.debian.org/debian-lts-announce/2022/11/msg00024.htmlnvdMailing ListThird Party AdvisoryWEB
- lists.debian.org/debian-lts-announce/2022/11/msg00025.htmlnvdMailing ListThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-30130ghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2021-30130.yamlghsaWEB
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