high7.5
CVE-2026-91080
webhook through 2.8.3 reads the entire request body into memory before evaluating trigger rules, allowing unauthenticated attackers to exhaust memory by sendin…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Webhook | through 2.8.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/adnanh/webhook
- https://github.com/adnanh/webhook/blob/2.8.3/webhook.go
- https://github.com/adnanh/webhook/issues/756
- https://www.vulncheck.com/advisories/webhook-through-2.8.3-memory-exhaustion-via-oversized-request-body
- https://github.com/adnanh/webhook/issues/756