{"answers":{"affected":"3 open source packages ship an affected version, including eml_parser and eml-parser.","exploited":"There is no known exploitation of CVE-2026-55618 in the wild and no public exploit code.","fix":"Upgrade eml_parser to 3.0.2 or later.","what":"CVE-2026-55618 is a medium-severity vulnerability in GOVCERT-LU eml_parser, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-55618 and fix it if it is affected.\n\nWhat it is: CVE-2026-55618 is a medium-severity vulnerability in GOVCERT-LU eml_parser, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-55618 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- eml_parser (PyPI): affected all versions; fixed in 3.0.2\n- eml-parser (PyPI): affected all versions; fixed in 3.0.2\n- eml-parser (PyPI): affected all versions; fixed in 3.0.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-55618/ (Markdown: https://insights.sbomify.com/CVE-2026-55618/index.md)","id":"CVE-2026-55618","markdown":"https://insights.sbomify.com/CVE-2026-55618/index.md","name":"CVE-2026-55618","record":{"aliases":["GHSA-fxgq-9m89-cxj9","PYSEC-2026-3831"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Python email parser","requires_auth":"none","summary":"Attackers can hide malicious URLs in emails using HTML entities, bypassing security gateways that rely on eml_parser for threat detection.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-116","name":"Improper Encoding or Escaping of Output"}],"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 3.0.2, 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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"eml_parser: URL extraction bypass via HTML entities in URLs","id":"CVE-2026-55618","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"eml_parser: Parser DoS via deeply nested parentheses in e-mail headers","id":"CVE-2026-55619"},"packages":[{"ecosystem":"PyPI","fixed":["3.0.2"],"introduced":["0"],"last_affected":[],"package":"eml-parser","purl":"pkg:pypi/eml-parser","source":"GHSA-fxgq-9m89-cxj9"},{"ecosystem":"PyPI","fixed":["3.0.2"],"introduced":["0"],"last_affected":[],"package":"eml-parser","purl":"pkg:pypi/eml-parser","source":"PYSEC-2026-3831"},{"ecosystem":"PyPI","fixed":["3.0.2"],"introduced":["0"],"last_affected":[],"package":"eml_parser","purl":null,"source":"GHSA-fxgq-9m89-cxj9"}],"prev":{"headline":"Hydro: Insufficient session expiration when recreating sessions","id":"CVE-2026-55617"},"products":["eml_parser"],"published":"2026-08-25","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-28","vendors":["GOVCERT-LU"]},"summary":"Attackers can hide malicious URLs in emails using HTML entities, bypassing security gateways that rely on eml_parser for threat detection.","url":"https://insights.sbomify.com/CVE-2026-55618/"}