CVE-2019-10405
Jenkins 2.196 and earlier, LTS 2.176.3 and earlier printed the value of the "Cookie" HTTP request header on the /whoAmI/ URL, allowing attackers exploiting another XSS vulnerability to obtain the HTTP session cookie despite it being marked HttpOnly.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 65.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
Jenkins 2.196 and earlier, LTS 2.176.3 and earlier printed the value of the "Cookie" HTTP request header on the /whoAmI/ URL, allowing attackers exploiting another XSS vulnerability to obtain the HTTP session cookie despite it being marked HttpOnly.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 65.29% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- jenkins/jenkins
- Source
- jenkinsci-cert@googlegroups.com
EPSS 65.3% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2019/09/25/3Mailing List, Third Party Advisory
- https://jenkins.io/security/advisory/2019-09-25/#SECURITY-1505Vendor Advisory
- http://www.openwall.com/lists/oss-security/2019/09/25/3Mailing List, Third Party Advisory
- https://jenkins.io/security/advisory/2019-09-25/#SECURITY-1505Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.