Vulnerability Description
Apprise is an open source library which allows you to send a notification to almost all of the most popular notification services available. In affected versions users who use Apprise granting them access to the IFTTT plugin (which just comes out of the box) are subject to a denial of service attack on an inefficient regular expression. The vulnerable regular expression is [here](https://github.com/caronc/apprise/blob/0007eade20934ddef0aba38b8f1aad980cfff253/apprise/plugins/NotifyIFTTT.py#L356-L359). The problem has been patched in release version 0.9.5.1. Users who are unable to upgrade are advised to remove `apprise/plugins/NotifyIFTTT.py` to eliminate the service.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nuxref | Apprise | < 0.9.5.1 |
Related Weaknesses (CWE)
References
- https://github.com/caronc/apprise/blob/0007eade20934ddef0aba38b8f1aad980cfff253/ExploitThird Party Advisory
- https://github.com/caronc/apprise/pull/436PatchThird Party Advisory
- https://github.com/caronc/apprise/security/advisories/GHSA-qhmp-h54x-38qrThird Party Advisory
- https://github.com/caronc/apprise/blob/0007eade20934ddef0aba38b8f1aad980cfff253/ExploitThird Party Advisory
- https://github.com/caronc/apprise/pull/436PatchThird Party Advisory
- https://github.com/caronc/apprise/security/advisories/GHSA-qhmp-h54x-38qrThird Party Advisory
FAQ
What is CVE-2021-39229?
CVE-2021-39229 is a vulnerability with a CVSS score of 7.5 (HIGH). Apprise is an open source library which allows you to send a notification to almost all of the most popular notification services available. In affected versions users who use Apprise granting them ac...
How severe is CVE-2021-39229?
CVE-2021-39229 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39229?
Check the references section above for vendor advisories and patch information. Affected products include: Nuxref Apprise.