CVE-2026-123747: Path Traversal (CVSS 7.3)

Description

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.

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CVSS v3.1 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:H

EPSS — Exploit Prediction

0.0123

Probability of exploitation

0.69%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-22 Path Traversal

References

Other References

https://access.redhat.com/security/cve/CVE-2026-123747 https://bugzilla.redhat.com/show_bug.cgi?id=2568110 http://www.openwall.com/lists/oss-security/2026/11/11/9

Frequently Asked Questions

What is CVE-2026-123747? +

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. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-123747? +

CVE-2026-123747 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0123, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-123747? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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