CVE-2026-8856 json
IBM HTTP Server is affected by multiple vulnerabilities
published 2026-05-26 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-31903
- cvss
- 7.7
- 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 9%
- public exploits
- 0
- none known
Summary
IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
Affected products
- IBM HTTP Server
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
ibm.com
/support/pages/node/7274065
vendor-advisory, patch
Sources
- CVE List CVE-2026-8856
- NVD CVE-2026-8856
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