High
webhook through 2.8.3 Memory Exhaustion via Oversized Request Body
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.
Announced Group revision 1
Original source ↗CVE-2026-91080
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-91080
webhook
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/adnanh/webhook",
"vendor": "adnanh",
"product": "webhook",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "2.8.3"
}
],
"packageURL": "pkg:golang/github.com/adnanh/webhook",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-91080
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #1647 · Revision 1
- Added to Heist Feed
- Publisher date