CVE-2026-108727: Auth Bypass (CVSS 4.3)

Description

EdgeEver through 1.108.0 contains a missing authorization vulnerability in the Hono API memo-template routes that allows holders of scoped API tokens to bypass token scope restrictions because template handlers never call requireScopes. Attackers with a token lacking write:memos can save a template and invoke POST /api/v1/templates/:id/use to create memos, and list, modify, or delete templates in the token owner's workspace.

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CVSS v3.1 Score

4.3

MEDIUM

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

EPSS — Exploit Prediction

0.0027

Probability of exploitation

0.18%

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/tianma-if/edgeever https://github.com/tianma-if/edgeever/blob/0ef9a1df9c849a64047aba64c70331c2badf8b39/apps/api/src/memo-routes.ts#L148-L150 https://github.com/tianma-if/edgeever/blob/0ef9a1df9c849a64047aba64c70331c2badf8b39/apps/api/src/template-routes.ts#L116-L230 https://hackmd.io/@haind/edgeever-template-write-memos-scope-bypass https://www.vulncheck.com/advisories/edgeever-through-1.108.0-missing-authorization-via-memo-template-api-routes https://hackmd.io/@haind/edgeever-template-write-memos-scope-bypass

Frequently Asked Questions

What is CVE-2026-108727? +

EdgeEver through 1.108.0 contains a missing authorization vulnerability in the Hono API memo-template routes that allows holders of scoped API tokens to bypass token scope restrictions because template handlers never call requireScopes. Attackers with a token lacking write:memos can save a template and invoke POST /api/v1/templates/:id/use to create memos, and list, modify, or delete templates in the token owner's workspace. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-108727? +

CVE-2026-108727 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0027, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-108727? +

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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