Shepherd through 0.3.1 SSRF via DNS Rebinding in Citation Checker
Shepherd (shepherd-ai) through 0.3.1 contains a server-side request forgery guard bypass in the citation-checker extra because the public_url guard validates a resolved address but fetch re-resolves the hostname at connect time. Attackers who plant a crafted reference URL in a checked document and control its DNS can rebind it to internal addresses, sending GET requests to internal HTTP(S) services and capturing responses in evidence files.
CVE-2026-108741
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-2026-108741
Shepherd
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/shepherd-agents/shepherd",
"vendor": "shepherd-agents",
"product": "Shepherd",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "0.3.1"
}
],
"packageURL": "pkg:pypi/shepherd-ai",
"collectionURL": "https://pypi.org",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-108741
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #20522 · Revision 1
- Added to Heist Feed
- Publisher date