Vulnerability · Published Sep 4, 2026 · Assigned by VulnCheck
CVE-2026-85699jina-ai reader server-side request forgery via redirect validation bypass
High 7.5
In plain English
A high-severity server-side request forgery in reader from jina-ai. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 58.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
jina-ai reader contains a server-side request forgery vulnerability where URL validation is performed only on the initial request but not re-applied to subsequent redirect hops. Attackers can craft a public URL that redirects to internal network addresses or cloud metadata endpoints, allowing the server to fetch and return the target's response body to the attacker.
Affected products (as reported)
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- GitHub Issue #1252 issue-tracking
- https://github.com/jina-ai/reader product
- https://github.com/jina-ai/reader/blob/1574bfd380d249c86c82db4dace0d9c8fe17e2b1/src/services/curl.ts technical-description
- https://github.com/jina-ai/reader/blob/1574bfd380d249c86c82db4dace0d9c8fe17e2b1/src/services/puppeteer.ts technical-description
- VulnCheck Advisory: jina-ai reader server-side request forgery via redirect validation bypass third-party-advisory