CVE-2026-38447
Description
osTicket 1.18.3 generates API keys using a predictable construction based on MD5 hashing. The use of MD5, combined with predictable inputs such as the current timestamp and client IP address, significantly reduces entropy. An attacker can approximate the key generation time and brute-force the key space within a feasible time window.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/osTicket/osTicket/blob/v1.18.3/include/class.api.php#L149
- https://github.com/osTicket/osTicket/blob/v1.18.3/include/class.misc.php
- https://github.com/osTicket/osTicket/commit/feccb6a3a90863fd31215ee738b39762177e658c
- https://github.com/fr3akhacks/cve-disclosures/blob/master/osTicket/CVE-2026-38447.md
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.