CVE-2026-18151
published 2026-09-14CVE-2026-18151: IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a race condition during the WebSocket handshake…
PriorityP419medium4.2CVSS 3.1
AVNACHPRLUINSUCLILAN
EPSS
0.14%
2.8th percentile
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a race condition during the WebSocket handshake process.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ibm | i | — | — |
| ibm | i | — | — |
| ibm | i | — | — |
| ibm | i | — | — |
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 i 7.3/7.4/7.5/7.6 WebSocket Handshake race condition (CNNVD-2026-97778860)
vuldb·2026-09-15·CVSS 4.2
CVE-2026-18151 [MEDIUM] IBM i 7.3/7.4/7.5/7.6 WebSocket Handshake race condition (CNNVD-2026-97778860)
A vulnerability, which was classified as problematic, was found in IBM i 7.3/7.4/7.5/7.6. Affected by this vulnerability is an unknown functionality of the component WebSocket Handshake. Executing a manipulation can lead to race condition.
This vulnerability appears as CVE-2026-18151. The attack may be performed from remote. There is no available exploit.
GHSA
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a race condition during the WebSocket handshake process.
ghsa_unreviewed·2026-09-14
CVE-2026-18151 [MEDIUM] CWE-362 IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a race condition during the WebSocket handshake process.
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a race condition during the WebSocket handshake process.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-09-14
Published