Path Traversal in Govcert-Lu Eml Parser
CVE-2026-29780
eml_parser serves as a python module for parsing eml files and returning various information found in the e-mail as well as computed information. Prior to version 2.0.1, the official example script examples/recursively_extract_attachments.py contains a path traversal vulnerability that allows arbitrary file write outside the intended output directory. Attachment filenames extracted from parsed emails are directly used to construct output file paths without any sanitization, allowing an attacker-controlled filename to escape the target directory. This issue has been patched in version 2.0.1.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (6.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.001
Affected products
- Govcert-Lu Eml Parser — versions < 2.0.1
- Govcert.lu Eml Parser
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/GOVCERT-LU/eml_parser/security/advisories/GHSA-389r-rccm-h3h5 (Exploit, Mitigation, Vendor Advisory)
- github.com/GOVCERT-LU/eml_parser/issues/88 (Issue Tracking)
- github.com/GOVCERT-LU/eml_parser/commit/99af03a09a90aaaaadd0ed2ffb5eea46d1ea2cc9 (Patch)
Frequently asked questions
- What is CVE-2026-29780?
- CVE-2026-29780 is a medium-severity vulnerability in Govcert-Lu Eml Parser, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-03-07.
- How severe is CVE-2026-29780?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2026-29780 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.