PT-2026-31311 · Unknown · Web Terminal

Published 2026-04-08 · Updated 2026-05-01 · CVE-2025-57853

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Web Terminal images (affected versions not specified)

Description A container privilege escalation flaw exists due to the /etc/passwd file being created with group-writable permissions during the build process. An attacker with command execution within an affected container, even as a non-root user, can modify the /etc/passwd file by leveraging root group membership. This allows the addition of a new user with an arbitrary UID, including UID 0, resulting in full root privileges within the container.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2025-57853

Affected Products

Web Terminal

References · 5

• https://bugzilla.redhat.com/show_bug.cgi?id=2391106 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-57853 · Security Note
• https://access.redhat.com/security/cve/CVE-2025-57853 · Vendor Advisory
• https://t.me/cveNotify/161818 · Telegram Post
• https://twitter.com/CVEnew/status/2043295649664229686 · Twitter Post