PT-2026-84455

Name of the Vulnerable Software and Affected Versions phpseclib versions prior to 3.0.57 phpseclib versions prior to 4.0.1 Description Pure-PHP X25519 scalar multiplication in phpseclib/Math/PrimeField/Integer.php performs data-dependent conditional modular reductions in the add and subtract...

CVE-2026-84308: Observable Timing Discrepancy

phpseclib is a PHP secure communications library. Prior to 3.0.57 and 4.0.1, pure-PHP X25519 scalar multiplication in phpseclib/Math/PrimeField/Integer.php performs data-dependent conditional modular reductions in add and subtract. During the Montgomery ladder in...

ROS-20260901-73-0026

The vulnerability in php-phpseclib is related to insufficient validation of incoming requests. Exploiting this vulnerability allows a malicious actor to perform SSRF attacks remotely...

[SECURITY] Fedora 44 Update: php-phpseclib-2.0.55-1.fc44

MIT-licensed pure-PHP implementations of an arbitrary-precision integer arithmetic library, fully PKCS1 v2.1 compliant RSA, DES, 3DES, RC4, Rijndael, AES, Blowfish, Twofish, SSH-1, SSH-2, SFTP, and X.509...

[SECURITY] Fedora 43 Update: php-phpseclib-2.0.55-1.fc43

MIT-licensed pure-PHP implementations of an arbitrary-precision integer arithmetic library, fully PKCS1 v2.1 compliant RSA, DES, 3DES, RC4, Rijndael, AES, Blowfish, Twofish, SSH-1, SSH-2, SFTP, and X.509...

Fedora 44 : php-phpseclib (2026-fac5581caa)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-fac5581caa advisory. Update to v2.0.55 - contains fix for CVE-2026-44167 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note th...

Fedora 43 : php-phpseclib (2026-b2ce3f8e3e)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-b2ce3f8e3e advisory. Update to v2.0.55 - contains fix for CVE-2026-44167 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note th...

CLSA-2026-1783386122 TuxCare security update for phpseclib/phpseclib (1 CVE)

TuxCare rebuilt phpseclib/phpseclib to address 1 CVE. Fixed in 0.3.10-p3+tuxcare...

CLSA-2026-1779410885 TuxCare security update for phpseclib/phpseclib (1 CVE)

TuxCare rebuilt phpseclib/phpseclib to address 1 CVE. Fixed in 0.3.10-p2+tuxcare...

CLSA-2026-1779065206 TuxCare security update for phpseclib/phpseclib (4 CVEs)

TuxCare rebuilt phpseclib/phpseclib to address 4 CVEs. Fixed in 0.3.10-p1+tuxcare...

ROS-20260727-73-0016

A vulnerability in the phpseclib cryptographic protocols library is related to information disclosure due to a timing inconsistency. Exploitation of this vulnerability could allow a remote attacker to gain unauthorized access to sensitive information...

CVE-2026-55599

creationtimestamp| type| source ---|---|--- 2026-07-08 18:35:03+00:00| published-proof-of-concept| https://github.com/phpseclib/phpseclib/security/advisories/GHSA-m557-wrgg-6rp4...

[SECURITY] [DLA 4670-1] php-phpseclib security update

----------------------------------------------------------------------- Debian LTS Advisory DLA-4670-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta July 05, 2026 https://wiki.debian.org/LTS - -----------------------------------------------------------------------...

Linux Distros Unpatched Vulnerability : CVE-2026-55599

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with...

Server-side Request Forgery (SSRF)

Overview phpseclib/phpseclib is a PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the X509::validateSignature function that follows a URL from Authority...

CVE-2026-55599

phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it...

DEBIAN-CVE-2026-55599

phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it...

CVE-2026-55599

phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it...

UBUNTU-CVE-2026-55599

phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it...

CVE-2026-55599 phpseclib: X.509 certificate validation sends attacker-controlled outbound requests (server-side request forgery) via Authority Information Access

phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it...