Answer in brief
CVE-2026-108741 records a Low severity (CVSS 2.3) vulnerability in Shepherd through 0.3.1 SSRF via DNS Rebinding in Citation Checker. The current sources do not mark it as known exploited. The current feed maps shepherd-agents/Shepherd (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 2.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps shepherd-agents/Shepherd (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| shepherd-agents/Shepherdgeneric | >=0 <=0.3.1 | Not reported |
Published upstream
Oct 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 11, 2026
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.
Quoted source text, attributed separately from HOL analysis.