Quick answers
- Is CVE-2026-123747 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-123747 being exploited in the wild.
- How severe is CVE-2026-123747?
- High severity, with a CVSS score of 7.3, published 11 November 2026.
- Which products and versions are affected?
- OpenPrinting pappl-retrofit.
- Is there a fix for CVE-2026-123747?
- 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-2026-123747 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-123747?
- Check whether you run OpenPrinting Pappl-Retrofit. 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
The vulnerability is a directory traversal flaw in PPD file upload and deletion functionality caused by insufficient filename sanitization. An unauthenticated remote attacker can submit filenames containing path traversal sequences (e.g., ../) to read, write, or delete arbitrary files on the system, leading to data corruption, denial of service, or remote code execution.
Affected products
- OpenPrinting pappl-retrofit
Timeline
- 2026-11-11: disclosed