# CVE-2026-123747: Pappl-retrofit: directory traversal in the add-ppdfiles and delete-ppdfiles actions

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

A flaw was found in pappl-retrofit. The application fails to properly sanitize user-supplied filenames when handling the upload and deletion of PostScript Printer Description (PPD) files. A remote, unauthenticated attacker can exploit this directory traversal flaw by submitting filenames containing path traversal sequences. This allows the attacker to upload or delete arbitrary files on the system, which can result in data corruption, denial of service, or arbitrary command execution.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (source: CNA: redhat)

## Affected products and versions

- OpenPrinting / pappl-retrofit (pappl-retrofit): ≥ 0; ≤ 1.0b2 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (pappl-retrofit): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 7.3 (high); CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/security/cve/CVE-2026-123747 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2568110 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- http://www.openwall.com/lists/oss-security/2026/11/11/9 (ADP: CVE)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-123747; retrieved 2026-11-11; source updated 2026-11-11

Revision: 12140a490cf7e27ebb65286d387feff8457e9b34bb0bf97965057175008e1304

Canonical: https://y2.dev/cve/CVE-2026-123747

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