CVE-2026-35461: Papra is a minimalistic document management and archiving platform

Q: How do I fix CVE-2026-35461?

papra: upgrade to 26.4.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-35461 being exploited?

CVE-2026-35461 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-35461 affect?

CVE-2026-35461 affects papra. Severity is medium (CVSS 5.0). 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 serv

Q: How urgent is CVE-2026-35461?

Priority 25/100. Public exploit reference

Routine

MEDIUM 5.0UPGRADE

CVE-2026-35461 is a medium-severity flaw (CVSS 5.0) affecting papra. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-04-07
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: papra

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 15:17 UTCPublished CVE record published
2026-06-17 10:40 UTCUpdated Record last modified

papra papra UPGRADE

Affected: < 26.4.0

Fixed in: 26.4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy papra || rpm -q papra || papra --version

2. UPGRADE to 26.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade papra

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade papra

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35461?

papra: upgrade to 26.4.0. Exact commands for each OS are on this page.

Is CVE-2026-35461 being exploited?

CVE-2026-35461 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35461 affect?

CVE-2026-35461 affects papra. Severity is medium (CVSS 5.0). 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 serv

How urgent is CVE-2026-35461?

Priority 25/100. Public exploit reference

Related CVEs

CVE-2026-35462 MEDIUM 4.3 UPGRADE Papra is a minimalistic document management and archiving platform
CVE-2026-35460 MEDIUM 4.3 UPGRADE Papra is a minimalistic document management and archiving platform

References

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