# phpseclib/phpseclib (Packagist) vulnerabilities Source: https://junglewise.ai/threats/technologies/phpseclib-phpseclib Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 10 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/phpseclib-phpseclib.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 14 vulnerabilities in phpseclib/phpseclib (Packagist): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-84308, was published on 1 September 2026. Nothing was published in the last eight weeks. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 1 - All time: 14 (0 critical, 0 exploited in the wild) ## About phpseclib/phpseclib (Packagist) PHP library providing cryptographic functions including SSH, RSA, DES, and AES encryption. ## Latest phpseclib/phpseclib (Packagist) vulnerabilities - [CVE-2026-84308: phpseclib X25519 non-constant-time scalar multiplication private key recovery](https://junglewise.ai/threats/cve-2026-84308-phpseclib-x25519-non-constant-time-scalar-multiplication-private) (medium, CVSS 6.3, published 1 Sep 2026) - [CVE-2026-55599: phpseclib SSRF in X.509 certificate validation](https://junglewise.ai/threats/cve-2026-55599-phpseclib-ssrf-in-x-509-certificate-validation) (medium, CVSS 5.8, published 22 Jun 2026) - [CVE-2026-44167: phpseclib denial of service via OID amplification in ASN1 decoding](https://junglewise.ai/threats/cve-2026-44167-phpseclib-oid-amplification-dos-in-asn1-decodeoid) (high, CVSS 7.5, published 12 May 2026) - [CVE-2023-49316: Phpseclib needs guardrails on large binaryfield integers](https://junglewise.ai/threats/cve-2023-49316-phpseclib-needs-guardrails-on-large-binaryfield-integers) (low, CVSS 3.1, published 8 May 2026) - [CVE-2024-27355: phpseclib guardrails needed on OID length](https://junglewise.ai/threats/cve-2024-27355-phpseclib-guardrails-needed-on-oid-length) (low, CVSS 3.1, published 8 May 2026) - [CVE-2024-27354: phpseclib: guardrails needed on isPrime and randomPrime](https://junglewise.ai/threats/cve-2024-27354-phpseclib-guardrails-needed-on-isprime-and-randomprime) (low, CVSS 3.1, published 6 May 2026) - [CVE-2026-40194: phpseclib timing discrepancy in SSH2 HMAC verification](https://junglewise.ai/threats/cve-2026-40194-phpseclib-timing-discrepancy-in-ssh2-hmac-verification) (low, CVSS 3.7, published 10 Apr 2026) - [CVE-2026-32935: phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack](https://junglewise.ai/threats/cve-2026-32935-phpseclib-s-aes-cbc-unpadding-susceptible-to-padding-oracle) (medium, CVSS 4, published 19 Mar 2026) - [CVE-2023-52892: Name confusion in x509 Subject Alternative Name fields](https://junglewise.ai/threats/cve-2023-52892-name-confusion-in-x509-subject-alternative-name-fields) (low, CVSS 3.1, published 28 Jun 2024) - [Duplicate Advisory: phpseclib does not properly limit the ASN1 OID length](https://junglewise.ai/threats/duplicate-advisory-phpseclib-does-not-properly-limit-the-asn1-oid-7c19f4a9) (low, CVSS 3.1, published 2 Mar 2024) - [Duplicate Advisory: phpseclib: guardrails needed on isPrime and randomPrime](https://junglewise.ai/threats/duplicate-advisory-phpseclib-guardrails-needed-on-isprime-and-daa08b82) (low, CVSS 3.1, published 2 Mar 2024) - [Duplicate Advisory: phpseclib vulnerable to denial of service](https://junglewise.ai/threats/duplicate-advisory-phpseclib-vulnerable-to-denial-of-service-1e3a6776) (low, CVSS 3.1, published 27 Nov 2023) - [CVE-2023-27560: phpseclib Infinite Loop vulnerability](https://junglewise.ai/threats/cve-2023-27560-phpseclib-infinite-loop-vulnerability) (low, CVSS 3.1, published 3 Mar 2023) - [CVE-2021-30130: Improper Certificate Validation in phpseclib](https://junglewise.ai/threats/cve-2021-30130-improper-certificate-validation-in-phpseclib) (low, CVSS 3.1, published 7 Apr 2021) ## Most severe phpseclib/phpseclib (Packagist) vulnerabilities - [CVE-2026-44167: phpseclib denial of service via OID amplification in ASN1 decoding](https://junglewise.ai/threats/cve-2026-44167-phpseclib-oid-amplification-dos-in-asn1-decodeoid) (high, CVSS 7.5, published 12 May 2026) - [CVE-2026-84308: phpseclib X25519 non-constant-time scalar multiplication private key recovery](https://junglewise.ai/threats/cve-2026-84308-phpseclib-x25519-non-constant-time-scalar-multiplication-private) (medium, CVSS 6.3, published 1 Sep 2026) - [CVE-2026-55599: phpseclib SSRF in X.509 certificate validation](https://junglewise.ai/threats/cve-2026-55599-phpseclib-ssrf-in-x-509-certificate-validation) (medium, CVSS 5.8, published 22 Jun 2026) - [CVE-2026-32935: phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack](https://junglewise.ai/threats/cve-2026-32935-phpseclib-s-aes-cbc-unpadding-susceptible-to-padding-oracle) (medium, CVSS 4, published 19 Mar 2026) - [CVE-2026-40194: phpseclib timing discrepancy in SSH2 HMAC verification](https://junglewise.ai/threats/cve-2026-40194-phpseclib-timing-discrepancy-in-ssh2-hmac-verification) (low, CVSS 3.7, published 10 Apr 2026) - [CVE-2021-30130: Improper Certificate Validation in phpseclib](https://junglewise.ai/threats/cve-2021-30130-improper-certificate-validation-in-phpseclib) (low, CVSS 3.1, published 7 Apr 2021) - [CVE-2023-27560: phpseclib Infinite Loop vulnerability](https://junglewise.ai/threats/cve-2023-27560-phpseclib-infinite-loop-vulnerability) (low, CVSS 3.1, published 3 Mar 2023) - [CVE-2023-49316: Phpseclib needs guardrails on large binaryfield integers](https://junglewise.ai/threats/cve-2023-49316-phpseclib-needs-guardrails-on-large-binaryfield-integers) (low, CVSS 3.1, published 8 May 2026) - [CVE-2024-27354: phpseclib: guardrails needed on isPrime and randomPrime](https://junglewise.ai/threats/cve-2024-27354-phpseclib-guardrails-needed-on-isprime-and-randomprime) (low, CVSS 3.1, published 6 May 2026) - [CVE-2024-27355: phpseclib guardrails needed on OID length](https://junglewise.ai/threats/cve-2024-27355-phpseclib-guardrails-needed-on-oid-length) (low, CVSS 3.1, published 8 May 2026) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 1 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Packagist technologies - [moodle/moodle (Packagist)](https://junglewise.ai/threats/technologies/moodle-moodle): 434 vulnerabilities - [magento/community-edition (Packagist)](https://junglewise.ai/threats/technologies/packagist-magento-community-edition): 362 vulnerabilities - [typo3/cms (Packagist)](https://junglewise.ai/threats/technologies/packagist-typo3-cms): 187 vulnerabilities - [wwbn/avideo (Packagist)](https://junglewise.ai/threats/technologies/wwbn-avideo): 164 vulnerabilities - [magento/project-community-edition (Packagist)](https://junglewise.ai/threats/technologies/magento-project-community-edition): 161 vulnerabilities - [drupal/core (Packagist)](https://junglewise.ai/threats/technologies/packagist-drupal-core): 150 vulnerabilities - [pimcore/pimcore (Packagist)](https://junglewise.ai/threats/technologies/pimcore-pimcore): 145 vulnerabilities - [craftcms/cms (Packagist)](https://junglewise.ai/threats/technologies/craftcms-cms): 143 vulnerabilities - [dolibarr/dolibarr (Packagist)](https://junglewise.ai/threats/technologies/dolibarr-dolibarr): 127 vulnerabilities - [getgrav/grav (Packagist)](https://junglewise.ai/threats/technologies/getgrav-grav): 127 vulnerabilities - [typo3/cms-core (Packagist)](https://junglewise.ai/threats/technologies/typo3-cms-core): 127 vulnerabilities - [concrete5/concrete5 (Packagist)](https://junglewise.ai/threats/technologies/concrete5-concrete5): 122 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "phpseclib/phpseclib (Packagist) vulnerabilities", https://junglewise.ai/threats/technologies/phpseclib-phpseclib, 10 November 2026.