Answer in brief
CVE-2026-85181 records a Critical severity (CVSS 9.3) vulnerability in CAT through 3.1.0 Session Cookie Forgery via Unkeyed hashCode Checksum. The current sources do not mark it as known exploited. The current feed maps dianping/cat (generic), dianping/cat (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 9.3. 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 dianping/cat (generic), dianping/cat (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| dianping/catgeneric | 0 | Not reported |
| dianping/catgeneric | >=0 <=3.1.0 | Not reported |
Published upstream
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 3, 2026
CAT uses Java String.hashCode as the sole integrity check for session cookies without server-side keying, allowing attackers to forge valid checksums offline. Attackers can set the x-forwarded-for header to bypass IP binding validation and create admin sessions with full configuration access.
Quoted source text, attributed separately from HOL analysis.