CVE-2023-49316
HIGH7.5EPSS 0.15%Duplicate Advisory: phpseclib vulnerable to denial of service
Published: 5/8/2026Modified: 5/27/2026
Description
In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.
Affected packages (3)
- Debian/php-phpseclib3from 0, < 3.0.19-1+deb12u1
- Packagist/phpseclib/phpseclib>= 3.0.0, < 3.0.34
- Packagist/phpseclib/phpseclib>= 3.0.0, < 3.0.34
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (8)
- ADVISORYhttps://github.com/advisories/GHSA-jpr7-q523-hx25
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-49316
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-49316
- PATCHhttps://github.com/phpseclib/phpseclib
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2023-49316.yaml
- WEBhttps://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f
- WEBhttps://github.com/phpseclib/phpseclib/releases/tag/3.0.34
- WEBhttps://github.com/phpseclib/phpseclib/security/advisories/GHSA-2f25-pfq3-c7h8