CVE-2026-8834
published 2026-05-26CVE-2026-8834: IBM HTTP Server 8.5, and 9.0 contains a buffer overflow vulnerability. A privileged user, authenticated to the Administration Server, could exploit this…
PriorityP341high8CVSS 3.1
AVAACLPRLUINSUCHIHAH
EPSS
0.26%
17.4th percentile
IBM HTTP Server 8.5, and 9.0 contains a buffer overflow vulnerability. A privileged user, authenticated to the Administration Server, could exploit this vulnerability to execute remote code or cause a denial of service.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ibm | http_server | — | — |
| ibm | http_server | 8.5.0 – Interim Fix 002 | — |
| ibm | http_server | >= 8.5.0.0 < 8.5.5.30 | 8.5.5.30 |
| ibm | http_server | >= 9.0.0.0 < 9.0.5.29 | 9.0.5.29 |
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
VulDB
IBM HTTP Server up to 9.0 heap-based overflow
vuldb·2026-05-26·CVSS 8.0
CVE-2026-8834 [HIGH] IBM HTTP Server up to 9.0 heap-based overflow
A vulnerability, which was classified as critical, was found in IBM HTTP Server up to 9.0. This affects an unknown part. Executing a manipulation can lead to heap-based buffer overflow.
This vulnerability is tracked as CVE-2026-8834. The attack is only possible within the local network. No exploit exists.
You should upgrade the affected component.
GHSA
GHSA-34j9-v3rv-pgg8: IBM HTTP Server 8
ghsa_unreviewed·2026-05-26
CVE-2026-8834 [HIGH] CWE-122 GHSA-34j9-v3rv-pgg8: IBM HTTP Server 8
IBM HTTP Server 8.5, and 9.0 contains a buffer overflow vulnerability. A privileged user, authenticated to the Administration Server, could exploit this vulnerability to execute remote code or cause a denial of service.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-26
Published