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Response snapshot Oct 27, 2026, 06:32 UTC

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VulnerabilityCVE-2026-113668

ApostropheCMS: :_id/locales REST route omits the public-API authorization gate its sibling read routes enforce (unauthenticated doc-existence + locale metadata disclosure)

An unauthenticated caller can confirm the existence of a document by `_id` and enumerate its locales/publication state — information the read-API is meant to gate. Defensibly 4.3 (AC:H) given the opaque `_id` precondition (the caller needs a document id).

At a glance

Exploited
Not known
Severity
5.3 Medium (CVSS 3.1)
Chance of exploitation
0.3% in the next 30 days
Sources
1 source

What to do

GitHub lists first patched versions: apostrophe: 4.33.0. Confirm the affected range and upgrade guidance in the exact advisory.

Read GitHub-reviewed advisory GHSA-gqh3-7856-rjjg (opens a new tab)

What happened

## Summary The REST route `GET /api/v1/ /:_id/locales` (and the equivalent page route) does not apply the `publicApiCheckAsync` gate that ApostropheCMS's other read routes enforce. An unauthenticated caller can therefore query this route for any document `_id` and learn whether the document exists and which locales it is published in — a document-existence and locale-metadata disclosure that the read-API is otherwise supposed to gate.

## Affected - Repository: `apostrophecms/apostrophe` (monorepo package `apostrophe`). - Confirmed at **4.32.2** (commit `d3ff8c9` == the shipped 4.32.2; unchanged at current HEAD). No fix at time of report. - Stack: Node.js / Express + MongoDB. - Endpoints: `GET /api/v1/ /:_id/locales` and `GET /api/v1/@apostrophecms/page/:_id/locales`.

## Technical detail - Unsafe: `modules/@apostrophecms/piece-type/index.js:397` registers the `:_id/locales` route with **no** `publicApiCheckAsync`. The page module has the same omission at `modules/@apostrophecms/page/index.js:925`. - Gated siblings: the read routes in the same module (e.g. `getAll` at `piece-type/index.js:256-263`) call `publicApiCheckAsync` (`:263`) to enforce the public-API access policy.

- So the `locales` handler (which calls `getLocales()` for the document) runs for any caller regardless of the public-API gate the other read routes apply, returning the document's locale/publication metadata without authorization.

Continue reading

## Impact

An unauthenticated caller can confirm the existence of a document by `_id` and enumerate its locales/publication state — information the read-API is meant to gate. Defensibly 4.3 (AC:H) given the opaque `_id` precondition (the caller needs a document id).

## How it was verified (local only) Reproduced against `apostrophe@4.32.2` (== commit `d3ff8c9`) locally with synthetic content: - Source review confirmed the `:_id/locales` route lacks `publicApiCheckAsync` while the sibling read routes have it. - An **unauthenticated** `GET /api/v1/ / /locales` returned the document's locale metadata (existence + locales), while the gated read routes (e.g.

`getAll`) correctly required the public-API policy. - Control: the same route with the `publicApiCheckAsync` gate added (matching the siblings) denies the unauthenticated request — isolating the missing gate as the cause. Synthetic content only; nothing hosted was touched.

## Remediation Add the `publicApiCheckAsync` (or equivalent) authorization gate to the `:_id/locales` route in both the piece-type and page modules, matching the sibling read routes, so the locale/existence metadata is only returned to callers permitted by the public-API policy.

## Credit Please credit **Santosh Kumar Puppala** (https://github.com/Santoshkumarpuppala).

Affected package ranges reported by GitHub: apostrophe: < 4.33.0

Scores and how they were measured

CVSS base severity

5.3

Version 3.1As of

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

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

0.3%

Scored Percentile 25.0%

Model and measurement source (opens a new tab)

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Related technology

Sources

  1. Primary source

    GitHub-reviewed advisory GHSA-gqh3-7856-rjjg (opens a new tab)

    The public advisory supplies the description, affected package/version ranges, and any listed CVSS metric. GitHub review is not local review.

    Published Checked

  2. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-gqh3-7856-rjjg, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  3. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-gqh3-7856-rjjg, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  4. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-gqh3-7856-rjjg, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  5. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-gqh3-7856-rjjg, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  6. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-gqh3-7856-rjjg, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  7. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-gqh3-7856-rjjg, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  8. Primary source

    FIRST measured EPSS score (opens a new tab)

    Measured EPSS probability and percentile for CVE-2026-113668, scored 2026-10-26. This is a model estimate, not proof of exposure.

    Published Checked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 20). ApostropheCMS: :_id/locales REST route omits the public-API authorization gate its sibling read routes enforce (unauthenticated doc-existence + locale metadata disclosure) (CVE-2026-113668). https://kevwire.com/record/CVE-2026-113668

MLA

"ApostropheCMS: :_id/locales REST route omits the public-API authorization gate its sibling read routes enforce (unauthenticated doc-existence + locale metadata disclosure) (CVE-2026-113668)." KEVWire, 20 Oct. 2026, kevwire.com/record/CVE-2026-113668.

Chicago

KEVWire. "ApostropheCMS: :_id/locales REST route omits the public-API authorization gate its sibling read routes enforce (unauthenticated doc-existence + locale metadata disclosure) (CVE-2026-113668)." Last modified October 20, 2026. https://kevwire.com/record/CVE-2026-113668.

Evidence summary (plain text)

ApostropheCMS: :_id/locales REST route omits the public-API authorization gate its sibling read routes enforce (unauthenticated doc-existence + locale metadata disclosure) (Oct 20, 2026).
An unauthenticated caller can confirm the existence of a document by `_id` and enumerate its locales/publication state — information the read-API is meant to gate. Defensibly 4.3 (AC:H) given the opaque `_id` precondition (the caller needs a document id).
 
## How it was verified (local only)
Reproduced against `apostrophe@4.32.2` (== commit `d3ff8c9`) locally with synthetic content:
- Source review confirmed the `:_id/locales` route lacks `publicApiCheckAsync` while the sibling read routes have it.
- An **unauthenticated** `GET /api/v1/ / /locales` returned the document's locale metadata (existence + locales), while the gated read routes (e.g. `getAll`) correctly required the public-API policy.
- Control: the same route with the `publicApiCheckAsync` gate added (matching the siblings) denies the unauthenticated request — isolating the missing gate as the cause.
Synthetic content only; nothing hosted was touched.
 
## Remediation
Add the `publicApiCheckAsync` (or equivalent) authorization gate to the `:_id/locales` route in both the piece-type and page modules, matching the sibling read routes, so the locale/existence metadata is only returned to callers permitted by the public-API policy.
 
## Credit
Please credit **Santosh Kumar Puppala** (https://github.com/Santoshkumarpuppala).
CVSS 5.3 (version 3.1; evidence as of Oct 20, 2026; https://github.com/advisories/GHSA-gqh3-7856-rjjg).
EPSS 0.3% for the following 30 days, scored Oct 26, 2026 (https://api.first.org/data/v1/epss?cve=CVE-2026-113668&date=2026-10-26).
Sources:
GitHub-reviewed advisory GHSA-gqh3-7856-rjjg: https://github.com/advisories/GHSA-gqh3-7856-rjjg
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMTozMDoxM1rOAAfv2A%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMToyODowOVrOAAfv1g%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMToyNDoyMFrOAAfv1Q%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMDo0NTowN1rOAAfvzQ%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMDozMDoyNlrOAAfvxw%3D%3D
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc&after=Y3Vyc29yOnYyOpK0MjAyNi0xMC0yMVQyMDowMzo1N1rOAAfvxQ%3D%3D
FIRST measured EPSS score: https://api.first.org/data/v1/epss?cve=CVE-2026-113668&date=2026-10-26
Record ID: CVE-2026-113668.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 27, 2026, 01:40 UTC. Ingestion is not an independent editorial investigation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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