{"id":"CVE-2021-39229","aliases":["GHSA-qhmp-h54x-38qr","PYSEC-2021-327"],"title":"Apprise vulnerable to regex injection with IFTTT Plugin","summary":"Apprise vulnerable to regex injection with IFTTT Plugin","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","vendor":"apprise","product":"apprise","ecosystem":"pip","affected":["apprise < 0.9.5.1"],"patched":["apprise 0.9.5.1"],"published":"2021-09-20","updated":"2026-07-08","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-qhmp-h54x-38qr","references":[{"url":"https://github.com/caronc/apprise/security/advisories/GHSA-qhmp-h54x-38qr"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39229"},{"url":"https://github.com/caronc/apprise/pull/436"},{"url":"https://github.com/caronc/apprise/commit/e20fce630d55e4ca9b0a1e325a5fea6997489831"},{"url":"https://github.com/caronc/apprise"},{"url":"https://github.com/caronc/apprise/blob/0007eade20934ddef0aba38b8f1aad980cfff253/apprise/plugins/NotifyIFTTT.py#L356-L359"},{"url":"https://github.com/caronc/apprise/releases/tag/v0.9.5.1"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/apprise/PYSEC-2021-327.yaml"}],"tags":["osv","pip"],"epss":0.01891,"epssPercentile":0.78668,"ingestedAt":"2026-07-08T18:25:52.428Z","slug":"CVE-2021-39229","body":"## Overview\n\n### Impact\nAnyone _publicly_ hosting the Apprise library and granting them access to the IFTTT notification service.\n\n### Patches\nUpdate to Apprise v0.9.5.1\n   ```bash\n   # Install Apprise v0.9.5.1 from PyPI\n   pip install apprise==0.9.5.1\n   ```\n\nThe patch to the problem was performed [here](https://github.com/caronc/apprise/pull/436/files).\n\n### Workarounds\nAlternatively, if upgrading is not an option, you can safely remove the following file:\n- `apprise/plugins/NotifyIFTTT.py` \n\nThe above will eliminate the ability to use IFTTT, but everything else will work smoothly.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Apprise](https://github.com/caronc/apprise/issues)\n* Email me at [lead2gold@gmail.com](mailto:lead2gold@gmail.com)\n\n### Additional Credit\nGithub would not allow me to additionally credit **Rasmus Petersen**, but I would like to put that here at the very least - thank you for finding and reporting this issue along with those already credited\n\n## Additional Notes:\n- Github would not allow me to add/tag the 2 CWE's this issue is applicable to (only CWE-400).  The other is: CWE-730 (placed in the title)\n\n\n## Affected packages\n\n- `apprise < 0.9.5.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `apprise 0.9.5.1`","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}