Echo: libgit2: security update to 1.9.0+ds-2+deb13u1

medium Tenable Self-Hosted Container Security Plugin ID 464354

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid
API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, the built-in
HTTP transport in src/libgit2/transports/http.c follows an offsite initial redirect, and
handle_remote_auth and handle_auth pass transport->owner->url instead of transport->server.url to the
credential callback when the redirected host returns 401 Unauthorized. A callback that scopes credentials
to the original trusted URL can therefore return GIT_CREDENTIAL_USERPASS_PLAINTEXT credentials that
libgit2 stores in transport->server.cred and sends as an Authorization header to the redirected host. An
attacker who controls a trusted Git host or an open redirect on that host can disclose HTTP Basic
credentials, personal access tokens, or equivalent credentials. This issue is fixed in versions 1.8.6 and
1.9.5. (CVE-2026-53586)

Solution

Update the libgit2 library and its related packages to version 1.9.0+ds-2+deb13u1 or later.

Plugin Details

Severity: Medium

ID: 464354

Version: Revision 1.1

Type: Local

Family: Echo Local Security Checks

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.65

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-53586

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/31/2026

Vulnerability Publication Date: 7/23/2026

Reference Information

CVE: CVE-2026-53586

Detections

Analytics