CVE-2026-35461
CVE-2026-35461 is a medium-severity vulnerability in Papra with a CVSS 3.x base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.
Key facts
- Severity: Medium (CVSS 3.x base score 5.0)
- EPSS exploit prediction: 0% (12th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-19655
- Weakness: CWE-918
- Affected product: Papra
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-35461?
- 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.
- How severe is CVE-2026-35461?
- CVE-2026-35461 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-35461 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-35461?
- CVE-2026-35461 affects Papra. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-35461?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-35461 have an EU (EUVD) identifier?
- Yes. CVE-2026-35461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19655.
- When was CVE-2026-35461 published?
- CVE-2026-35461 was published on 2026-04-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:papra:papra:*:*:*:*:*:*:*:*
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