Python
CVE-2026-29780
MEDIUM
GHSA-389r-rccm-h3h5
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
4Blast Radius
ecosystem impact- 1 pypi packages depend on eml-parser (1 direct, 0 indirect)
Ecosystem-wide dependent count for version 2.0.1.
DescriptionGitHub Advisory
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.
Articles & Coverage 1
AnalysisAI
Unsanitized attachment filenames in eml_parser prior to version 2.0.1 enable path traversal attacks, allowing attackers to write files outside the intended output directory when the example extraction script processes malicious emails. Organizations using the vulnerable example code or similar attachment handling logic are at risk of unauthorized file writes that could overwrite critical files or introduce malicious content. Public exploit code exists for this vulnerability, and a patch is available in version 2.0.1 and later.
Technical ContextAI
Classified as CWE-22 (Path Traversal). Affects Eml Parser. 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-
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 2.0.1.. Validate and sanitize file path inputs. Use allowlists.
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
Leaving vuln.today