Quick answers
- Is CVE-2026-10294 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-10294 being exploited in the wild.
- How severe is CVE-2026-10294?
- Medium severity, with a CVSS score of 4.3, published 1 June 2026.
- Which products and versions are affected?
- PackageKit up to 1.3.5.
- Is there a fix for CVE-2026-10294?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-10294 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-10294?
- Check whether you run PackageKit at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A vulnerability exists in PackageKit's `SetHints` D-Bus method within `src/pk-transaction.c`. The function `pk_transaction_set_hint` processes the `frontend-socket` parameter using `g_file_test()` with the `G_FILE_TEST_EXISTS` flag. Because PackageKit typically runs with root privileges, `g_file_test()` follows symbolic links as root. An unprivileged attacker can provide a path to a symlink pointing to a restricted file; if the method returns success, the target file exists, and if it returns a "does not exist" error, the file is absent. This creates a side-channel oracle for arbitrary file probing. The vulnerability is reachable via the D-Bus system bus.
Affected products
- PackageKit PackageKit up to 1.3.5
Timeline
- 2026-05-11: disclosed: Issue reported on PackageKit GitHub repository
- 2026-06-01: advisory: CVE-2026-10294 published