USN-8830-1: php-phpseclib Ubuntu

CVSS: UnknownPublished
Published 28-09-2026Last modified 28-09-2026
Open JSON

Vulnerability summary

USN-8830-1 is a vulnerability in php-phpseclib Ubuntu with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 3 · Downstream 0 · Related 3
CVE-2026-32935CVE-2026-40194CVE-2026-44167

Timeline

  1. 28-09-2026
    PublishedVulnerability first disclosed.
  2. 28-09-2026
    Last modifiedVulnerability information updated.

Description

php-phpseclib vulnerabilities It was discovered that phpseclib did not perform constant-time padding validation when using AES in CBC mode. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-32935) It was discovered that phpseclib did not use a constant-time comparison when validating SSH packet authentication codes. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-40194) It was discovered that phpseclib did not properly limit object identifier lengths when parsing ASN.1 data. An attacker could possibly use this issue to cause phpseclib to use excessive resources, leading to a denial of service. (CVE-2026-44167)

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • php-phpseclib< 2.0.1-1ubuntu0.1~esm1 | < 2.0.9-1ubuntu0.1~esm3 | < 2.0.23-2ubuntu0.1~esm3 | < 2.0.36-1ubuntu0.1~esm3 | < 2.0.47-1ubuntu0.1~esm1 | < 2.0.51-1ubuntu0.1~esm1

1 vendor · 1 product

References

4 links