CVE-2026-110624: Auth Bypass (CVSS 3.1)

Description

Papermerge Core through 3.5.3 contains a missing authorization vulnerability that allows authenticated users to list other groups' tags and document types by supplying a group_id parameter. Attackers who know a group's UUID can query GET /tags/all or GET /document-types/all, which skip the user_belongs_to check, to disclose metadata of groups they do not belong to.

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CVSS v3.1 Score

3.1

LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0033

Probability of exploitation

0.24%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/document_types/router.py#L37-L62 https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/tags/router.py#L39-L64 https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269 https://github.com/papermerge/papermerge-core/issues/1291 https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-via-tags-all-and-document-types-all

Frequently Asked Questions

What is CVE-2026-110624? +

Papermerge Core through 3.5.3 contains a missing authorization vulnerability that allows authenticated users to list other groups' tags and document types by supplying a group_id parameter. Attackers who know a group's UUID can query GET /tags/all or GET /document-types/all, which skip the user_belongs_to check, to disclose metadata of groups they do not belong to. It has a CVSS v3.1 base score of 3.1 (LOW).

How severe is CVE-2026-110624? +

CVE-2026-110624 has a CVSS v3.1 score of 3.1 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0033, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-110624? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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