CVE-2026-44167

Publication date 12 May 2026

Last updated 28 September 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.

Status

Package Ubuntu Release Status
php-phpseclib 26.04 LTS resolute
Fixed 2.0.51-1ubuntu0.1~esm1
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 2.0.47-1ubuntu0.1~esm1
22.04 LTS jammy
Fixed 2.0.36-1ubuntu0.1~esm3
20.04 LTS focal
Fixed 2.0.23-2ubuntu0.1~esm3
18.04 LTS bionic
Fixed 2.0.9-1ubuntu0.1~esm3
16.04 LTS xenial
Fixed 2.0.1-1ubuntu0.1~esm1
php-phpseclib3 26.04 LTS resolute
Needs evaluation
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Needs evaluation
phpseclib 26.04 LTS resolute
Needs evaluation
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Needs evaluation
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation

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Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-8830-1
    • phpseclib vulnerabilities
    • 28 September 2026

Other references

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