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CVE

CVE-2026-38447

osTicket 1.18.3 generates API keys using a predictable construction based on MD5 hashing.
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CVE

CVE-2026-38447

osTicket 1.18.3 generates API keys using a predictable construction based on MD5 hashing.

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/fr3akhacks/cve-disclosures/blob/master/osTicket/CVE-2026-38447.md, 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/CVEProject/cvelistV5/tree/main/cves/2026/38xxx/CVE-2026-38447.json, https://nvd.nist.gov/vuln/detail/CVE-2026-38447, https://github.com/osTicket/osTicket/commit/feccb6a3a90863fd31215ee738b39762177e658c

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00455%
EPSS Percentile
0.3771%
Introduced Version
0
Fix Available
feccb6a3a90863fd31215ee738b39762177e658c

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