CVE-2026-91080
High
Description
webhook through 2.8.3 reads the entire request body into memory before evaluating trigger rules, allowing unauthenticated attackers to exhaust memory by sending oversized bodies. Attackers can send multi-gigabyte request bodies with invalid signatures to trigger out-of-memory conditions and crash the service.
SeverityHigh
CVSS7.5
Exploit probability—
ProductAdnanh Webhook
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| adnanh webhook | v ≤ 2.8.3 | — |
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