PT-2026-39305 · Pypi · Eml-Parser

Sebasteuo · Published 2026-05-08 · Updated 2026-05-26 · CVE-2026-44844

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions eml parser version 3.0.0

Description A recursion denial of service exists in the get raw body text() function within eml parser/parser.py. The function recurses unconditionally for every nested message/rfc822 attachment without a depth limit. An attacker can provide a specially crafted EML file with approximately 120 nested message/rfc822 parts to trigger an unhandled RecursionError, which aborts the parsing process and can crash a worker process. This issue is exploitable in deployments that ingest emails from external senders without basic validation.

Recommendations Update eml parser to a version where recursion depth checks have been implemented for the get raw body text() function.

Exploit

Fix

DoS

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-44844

GHSA-G47V-RWMH-R9F8

Affected Products

Eml-Parser

References · 5

• 🔥 https://github.com/GOVCERT-LU/eml_parser/security/advisories/GHSA-g47v-rwmh-r9f8 · Exploit
• https://osv.dev/vulnerability/GHSA-g47v-rwmh-r9f8 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-44844 · Security Note
• https://github.com/GOVCERT-LU/eml_parser · Note
• https://twitter.com/dailycve/status/2052953168275820698 · Twitter Post