Bug 2521735

Summary:	CVE-2026-53584 rust-libgit2-sys0.17: libgit2: Submodule path traversal allows arbitrary directory creation [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Vladimir Vasilev <vvasilev>
Component:	rust-libgit2-sys0.17	Assignee:	Rust SIG <rust-sig>
Status:	ASSIGNED ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	epel10	CC:	decathorpe, rust-sig
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["be93a537-ce16-41f3-81c3-4f23075be4c4"]}
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2520695

Description Vladimir Vasilev 2026-08-24 07:37:50 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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, libgit2 does not reject traversal components in a submodule path loaded from .gitmodules. The affected src/libgit2/submodule.c paths include git_submodule_lookup and git_submodule_add_setup. A crafted repository can specify a path such as ../escape-target, and applications that initialize the submodule can create directories outside the repository working tree. This issue is fixed in versions 1.8.6 and 1.9.5.

Comment 1 Fabio Valentini 2026-08-27 12:51:15 UTC

The only remaining package that depends on rust-libgit2-sys0.17 is rust-git-absorb, which should be resolved by a PR I opened.