CVE-2026-108729CWE-863broken-access-control

CVE-2026-108729

Medium · published October 11, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
20.8
In the wild
Unconfirmed
What it is

Corteza through 2024.9.10 contains an incorrect authorization vulnerability in compose attachment endpoints that allows unauthenticated attackers to download private attachments by setting the URL kind segment to page, icon, or namespace. Attackers who know a private record or module attachment id can request the original or preview route without a token or signature to retrieve files across namespace and record permission boundaries.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
8.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00293 · 20.8th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-10-11T17:17Z
References (6)
https://github.com/cortezaproject/corteza · [email protected]https://github.com/cortezaproject/corteza/blob/3835dfc4ac8bd89381753f09042ad147a4502576/server/compose/rest/attachment.go#L79-L122 · [email protected]https://github.com/cortezaproject/corteza/blob/3835dfc4ac8bd89381753f09042ad147a4502576/server/compose/service/attachment.go#L123-L142 · [email protected]https://github.com/cortezaproject/corteza/commit/3b68aa30c7261f729fcf8202f3eab9cf7d9168d3 · [email protected]https://hackmd.io/@haind03/corteza-attachment-kind-confusion-unauth-read · [email protected]https://www.vulncheck.com/advisories/corteza-through-2024.9.10-unauthenticated-attachment-access-via-compose-attachment-endpoints · [email protected]
EPSS history
Timeline
  • 13 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 11 OCT 12:19Z
    Corteza through 2024.9.10 Unauthenticated Attachment Access via Compose Attachment Endpoints
    cvelistv5
  • 11 OCT 12:19Z
    Corteza through 2024.9.10 Unauthenticated Attachment Access via Compose Attachment Endpoints
    cvelistv5