CVE-2026-77816 json
IBM WebSphere Application Server Liberty Improper Certificate Validation
published 2026-10-13 26 d ago modified 2026-10-14 25 d ago also EUVD-2026-100488
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 administrative client could allow man-in-the-middle attacks. An attacker could exploit this vulnerability to obtain sensitive information.
Patch / fix
- ibm.com/support/pages/node/7291394 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 25 d ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N |
Affected products
- IBM WebSphere Application Server - Liberty
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
ibm.com
/support/pages/node/7291394
vendor-advisory, patch
Sources
- CVE List CVE-2026-77816
- NVD CVE-2026-77816
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.