Vulnerability Description
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 3.0.2, the clean_found_uri function in eml_parser/parser.py validates potential URL strings before unescaping HTML entities used for colon, slash, or period characters. Valid encoded URLs and their host names are therefore rejected and omitted from the extracted URL and domain lists. Email security gateways and SOC pipelines that use those lists as indicators of compromise may fail to submit the hidden URLs to threat intelligence feeds, reputation services, or sandboxes, allowing malicious links to bypass inspection. This issue is fixed in version 3.0.2.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/GOVCERT-LU/eml_parser/commit/746a69f86443eb0b6a47f77db3cfe727
- https://github.com/GOVCERT-LU/eml_parser/pull/90
- https://github.com/GOVCERT-LU/eml_parser/releases/tag/v3.0.2
- https://github.com/GOVCERT-LU/eml_parser/security/advisories/GHSA-fxgq-9m89-cxj9
FAQ
What is CVE-2026-55618?
CVE-2026-55618 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 3.0.2, the clean_found_uri function in eml_pa...
How severe is CVE-2026-55618?
CVE-2026-55618 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55618?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.