CVE-2026-35461 json
Papra has a Blind Server-Side Request Forgery (SSRF) via Webhook URL
published 2026-04-07 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-19655
- cvss
- 5.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 12%
- public exploits
- 0
- none known
Summary
Papra is a minimalistic document management and archiving platform. Prior to 26.4.0, the Papra webhook system allows authenticated users to register arbitrary URLs as webhook endpoints with no validation of the destination address. The server makes outbound HTTP POST requests to registered URLs, including localhost, internal network ranges, and cloud provider metadata endpoints, on every document event. This vulnerability is fixed in 26.4.0.
Patch / fix
- papra papra 26.4.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/papra-hq/papra/security/advisories/GHSA-cjw7-qg95-58mq referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected products
- papra-hq papra
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/papra-hq/papra/security/advisories/GHSA-cjw7-qg95-58mq
exploit, vendor-advisory
Sources
- CVE List CVE-2026-35461
- NVD CVE-2026-35461
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