CVE-2026-91080

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Source
https://cve.org/CVERecord?id=CVE-2026-91080
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91080.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91080
Published
2026-09-14T17:52:08Z
Modified
2026-09-16T03:48:48Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
webhook through 2.8.3 Memory Exhaustion via Oversized Request Body
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91080.json"
}
References

Affected packages

Git / github.com/adnanh/webhook

Affected ranges

Type
GIT
Repo
https://github.com/adnanh/webhook
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f78eeeca7d2d5f4af2e792d1df5c6e2b0c922dad
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.8.3"
        },
        {
            "fixed": "2.8.3"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

2.*
2.0.0
2.1.0
2.2.0
2.2.2
2.3.0
2.3.2
2.3.9
2.6.10
2.6.11
2.6.6
2.6.7
2.6.8
2.6.9
2.7.0
2.8.0
2.8.1
2.8.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91080.json"