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SCA: security update for isomorphic-git (GHSA-96wc-2m84-2cj7)

medium Tenable Self-Hosted Container Security Plugin ID 478837

Description

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

 - isomorphic-git is a pure JavaScript implementation of Git for Node.js and browsers. Prior to 1.38.6,
 isomorphic-git persists server-supplied circular symref= capabilities through updateRemoteRefs, and
 GitRefManager.resolve() follows the resulting loose symbolic references without a default depth limit or
 cycle detection. After a clone from a malicious or man-in-the-middle-controlled remote, operations such as
 log, status, checkout, and branch that resolve refs/remotes/origin/a or refs/remotes/origin/b do not
 terminate. The circular references remain on disk, leaving the repository unusable for the application and
 causing a persistent denial of service. This issue is fixed in version 1.38.6. (CVE-2026-63475)

Solution

Update the isomorphic-git library and its related packages to version 1.38.6 or later.

See Also

https://github.com/advisories/GHSA-96wc-2m84-2cj7

Plugin Details

Severity: Medium

ID: 478837

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 11/9/2026

Updated: 11/9/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-63475

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2026

Vulnerability Publication Date: 11/3/2026

Reference Information

CVE: CVE-2026-63475