cbcvebase.
CVE-2026-56782
published 2026-06-29

CVE-2026-56782: Gorse before 0.5.10 contains an authentication bypass vulnerability in the /api/dump and /api/restore endpoints that allows unauthenticated attackers to access…

PriorityP181critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EXPLOIT
EPSS
3.56%
88.6th percentile
Gorse before 0.5.10 contains an authentication bypass vulnerability in the /api/dump and /api/restore endpoints that allows unauthenticated attackers to access protected functionality when admin_api_key is empty, which is the default configuration. Remote attackers can exfiltrate the entire database including user records, items, and feedback data containing personally identifiable information, or completely overwrite the dataset without authentication.

Affected

1 ranges
VendorProductVersion rangeFixed in
gorse-iogorse< 0.5.100.5.10

Detection & IOCsextracted from sources · hover to see the quote

url/api/dump
url/api/restore
otherGET /api/dump HTTP/1.1
  • Send unauthenticated GET /api/dump; a vulnerable Gorse instance returns HTTP 200 with Content-Type: application/octet-stream and no 'unauthorized' body string.
  • Fingerprint the target first by checking that the HTTP 200 response body contains the string 'gorse' (case-insensitive) before probing the dump endpoint.
  • Use FOFA query 'title="Gorse Dashboard"' to discover internet-exposed Gorse instances for mass scanning.
  • ·The authentication bypass is only exploitable when admin_api_key is empty, which is the default configuration. Instances with a non-empty admin_api_key are not affected.
  • ·Both /api/dump (read) and /api/restore (write) are exposed; attackers can exfiltrate the full database OR completely overwrite it without credentials.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.09.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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