EUVD-2026-65697
GHSA-fxgq-9m89-cxj9
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
No sender authentication is needed; UI:R reflects that the parser must process the email; I:H captures the security-control bypass enabling uninspected phishing delivery; C and A are not impacted by this flaw.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
URL extraction bypass in GOVCERT-LU eml_parser prior to version 3.0.2 allows a remote sender to craft phishing emails containing HTML-entity-encoded URLs that evade the library's URL extraction entirely. Security gateways and SOC pipelines relying on eml_parser to produce IOC lists will silently omit these obfuscated links, preventing submission to threat-intelligence feeds, URL reputation services, and sandboxes. …
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Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target organization runs eml_parser prior to version 3.0.2 as part of an automated email security pipeline and that the pipeline's IOC extraction depends on the library's URL output list without supplementary extraction mechanisms. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.5 (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N) is broadly consistent with the vulnerability's character: no authentication is required to send email, complexity is low, and the Integrity:High metric captures the completeness failure of the downstream security pipeline rather than direct data modification. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to eml_parser version 3.0.2, the vendor-released patch confirmed by the GitHub release at https://github.com/GOVCERT-LU/eml_parser/releases/tag/v3.0.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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