CVE-2018-11783
sslheaders plugin extracts information from the client certificate and sets headers in the request based on the configuration of the plugin.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
sslheaders plugin extracts information from the client certificate and sets headers in the request based on the configuration of the plugin. The plugin doesn't strip the headers from the request in some scenarios. This problem was discovered in versions 6.0.0 to 6.0.3, 7.0.0 to 7.1.5, and 8.0.0 to 8.0.1.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.87% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- apache/traffic server
- Source
- security@apache.org
EPSS 1.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/107032Third Party Advisory
- https://lists.apache.org/thread.html/4f102f943935476732fb1fb653d687c7b69d29d9792f0d6cf72c505e%40%3Cannounce.trafficserver.apache.org%3E
- http://www.securityfocus.com/bid/107032Third Party Advisory
- https://lists.apache.org/thread.html/4f102f943935476732fb1fb653d687c7b69d29d9792f0d6cf72c505e%40%3Cannounce.trafficserver.apache.org%3E
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.