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Vulnerability record · CVE-2026-76876 · published 21 August 2026

CVE-2026-76876: Missing authorization vulnerability

Craftplan before 0.5.1 contains a broken access control vulnerability that allows unauthenticated attackers to read sensitive credentials by exploiting an unconditional authorization policy on the Settings resource. Attackers can send a GET request to the settings API endpoint with a valid record ID to retrieve decrypted SMTP passwords, email API keys, and email API secrets due to the read policy using an always-allow authorization check that bypasses all identity verification.

8.2 CVSS 4.0 High EPSS 0.45% · top 63.8% CWE-862 · Missing authorization Deferred
8.2CVSS 4.0 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
31 Aug 2026Last modified by NVD

Description

Craftplan before 0.5.1 contains a broken access control vulnerability that allows unauthenticated attackers to read sensitive credentials by exploiting an unconditional authorization policy on the Settings resource. Attackers can send a GET request to the settings API endpoint with a valid record ID to retrieve decrypted SMTP passwords, email API keys, and email API secrets due to the read policy using an always-allow authorization check that bypasses all identity verification.

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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:

References

LinkTags
https://github.com/puemos/craftplan/commit/317acd584b68887f592dc3b97f47703dd63b1bf
https://github.com/puemos/craftplan/releases/tag/v0.5.1
https://www.vulncheck.com/advisories/craftplan-broken-access-control-information-disclosure-via-settings-api

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Source: NIST National Vulnerability Database (record CVE-2026-76876), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.