pappl-retrofit: directory traversal

OpenPrinting pappl-retrofit

pappl-retrofit has a critical vulnerability that allows directory traversal.

Do this now

No source names a fix yet: limit who can reach OpenPrinting pappl-retrofit until one does.

Still cooking for pappl-retrofit.

First seen: 11 Nov 2026
Last update: 12 Nov 2026, 19:18 UTC
Identifiers: CVE-2026-123747
CVSS: 7.3
Source: news

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## pappl-retrofit: directory traversal
Severity: high. Patch status: fix status unknown.
Affected: OpenPrinting pappl-retrofit
Ids: CVE-2026-123747

pappl-retrofit has a critical vulnerability that allows directory traversal.

## Steps
1. Search the repo, its CI and infra config for OpenPrinting pappl-retrofit. If present, report the version in use and whether it's affected.
2. pappl-retrofit <= 1.0b2: the CVE record names no fix; check the vendor advisory before assuming there is none. Until one ships: restrict network access to it.

## Fix by release line
| Line | State | Fix | Until then |
|---|---|---|---|
| pappl-retrofit <= 1.0b2 | not named in the CVE record | check the vendor advisory | restrict network access to it |

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-123747") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://seclists.org/oss-sec/2026/q4/658
https://pwned.coffee/i/pappl-retrofit-directory-traversal-cve-2026-123747

Timeline

11 Nov 2026, 17:18 UTC
Fix status: no fix yet → unknown.
11 Nov 2026
First reported.

Receipt

Exploitation: No known exploitation
Fix by release line: Product Affected Fixed in Source
pappl-retrofit <= 1.0b2 fix not named in the CVE record: see vendor advisory CVE record (CNA) checked 12 Nov
Score: CVSS 7.3 (high). CVSS 3.1 7.3 (CNA redhat) for CVE-2026-123747
Last checked: 13 Nov 2026, 16:26 UTC

Product	Affected	Fixed in	Source
pappl-retrofit	<= 1.0b2	fix not named in the CVE record: see vendor advisory	CVE record (CNA) checked 12 Nov

Sources: KEV – CVE record ✓ Vendor ✓

Sources

seclists.org: CVE-2026-123747 pappl-retrofit: Directory traversal in the add-ppdfiles and delete-ppdfiles actions

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