CVE-2026-104026 - Vulnerability Details - OpenCVE

In Sapling SCM prior to v0.2.20260929-102736, control characters were allowed to be embedded in Git subtree URLs. A maliciously constructed repository, if cloned by a target, could trigger code execution on otherwise read-only actions such as sl log/blame/annotate.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.facebook.com/security/advisories/cve-2026-104026

History

Fri, 02 Oct 2026 15:45:00 +0000

Type	Values Removed	Values Added
Title		Control Characters in Git Subtree URLs Cause Code Execution
Weaknesses		CWE-78

Fri, 02 Oct 2026 15:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-150
Metrics		cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Fri, 02 Oct 2026 14:30:00 +0000

Type	Values Removed	Values Added
Description		In Sapling SCM prior to v0.2.20260929-102736, control characters were allowed to be embedded in Git subtree URLs. A maliciously constructed repository, if cloned by a target, could trigger code execution on otherwise read-only actions such as sl log/blame/annotate.
References		https://www.facebook.com/security/advisories/cve-2026-104026

Projects

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MITRE

Status: PUBLISHED

Assigner: Meta

Published: 2026-10-02T14:06:02.380Z

Updated: 2026-10-02T14:30:01.530Z

Reserved: 2026-10-01T17:11:09.874Z

Link: CVE-2026-104026

Vulnrichment

Updated: 2026-10-02T14:29:43.794Z

NVD

Status : Received

Published: 2026-10-02T15:17:05.453

Modified: 2026-10-02T15:17:05.453

Link: CVE-2026-104026

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-10-02T15:30:12Z

Weaknesses

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