Answer in brief
CVE-2026-55618 records a Medium severity (CVSS 6.5) vulnerability in eml_parser: URL extraction bypass via HTML entities in URLs. The current sources do not mark it as known exploited. The current feed maps GOVCERT-LU/eml_parser (generic), eml_parser (pip), eml-parser (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps GOVCERT-LU/eml_parser (generic), eml_parser (pip), eml-parser (pypi). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| GOVCERT-LU/eml_parsergeneric | < 3.0.2 | Not reported |
| eml_parserpip | <3.0.2 | 3.0.2 |
| eml-parserpypi | >=0 <3.0.2 | 3.0.2 |
Published upstream
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 25, 2026
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.
Quoted source text, attributed separately from HOL analysis.