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 3.0.1, EmlParser.get_raw_body_text() recurses unconditionally for every nested message/rfc822 attachment without any depth limit. An attacker who can supply a badly crafted EML file with approximately 120 nested message/rfc822 parts triggers an unhandled RecursionError and aborts parsing of the message. A 12 KB EML file is enough to crash a worker. Though this causes the parser to crash, it is an unlikely scenario as the suggested EML that crashes the parser would not pass basic RFC compliance tests. This vulnerability is fixed in 3.0.1.
Published: 2026-05-26
Score: 6.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-g47v-rwmh-r9f8 eml_parser has recursion DoS via nested message/rfc822 attachments
History

Wed, 27 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 26 May 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Govcert-lu
Govcert-lu eml Parser
Vendors & Products Govcert-lu
Govcert-lu eml Parser

Tue, 26 May 2026 20:30:00 +0000

Type Values Removed Values Added
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 3.0.1, EmlParser.get_raw_body_text() recurses unconditionally for every nested message/rfc822 attachment without any depth limit. An attacker who can supply a badly crafted EML file with approximately 120 nested message/rfc822 parts triggers an unhandled RecursionError and aborts parsing of the message. A 12 KB EML file is enough to crash a worker. Though this causes the parser to crash, it is an unlikely scenario as the suggested EML that crashes the parser would not pass basic RFC compliance tests. This vulnerability is fixed in 3.0.1.
Title eml_parser: Recursion DoS via nested message/rfc822 attachments
Weaknesses CWE-674
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Subscriptions

Govcert-lu Eml Parser
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-27T13:41:33.306Z

Reserved: 2026-05-07T21:21:48.353Z

Link: CVE-2026-44844

cve-icon Vulnrichment

Updated: 2026-05-27T13:41:11.011Z

cve-icon NVD

Status : Deferred

Published: 2026-05-26T21:16:39.163

Modified: 2026-06-17T10:51:25.187

Link: CVE-2026-44844

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-26T21:30:16Z

Weaknesses