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Vulnerabilities

Security fix · CVE-2026-112955

ApostropheCMS is an open-source Node.js content management system.

Published Oct 20, 2026 · catalog updated Oct 21, 2026 · ApostropheCMS is an open-source

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-112955. EPSS is 0.53%. Act only if a listed version of ApostropheCMS is an open-source is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (ApostropheCMS is an open-source).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.53%
Remediation
Version ranges on file
Affected products
npm @apostrophecms · npm @apostrophecms/import-export · package npm

## Review scope and evidence limits Package: @apostrophecms/import-export, version 3.7.0. Release tag reviewed: @apostrophecms/import-export@3.7.0, commit 9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce (September 30, 2026). Current main reviewed: 5ce3732be0ebdebb4db0f8ef160c81e8671157e6. The importer, gzip extractor, import permission gate, and core permission implementation have no differences between that release tag and the reviewed main. This follow-up is a static remediation review. We have not repeated the original end-to-end reproductions against the latest release or tested a deployed site. Current exploitability and impact therefore still require maintainer validation; the observations below establish that the reported security checks remain absent in public source. The original emailed PDF contains the original reproduction material. Please refer to that existing private attachment. ## Import archive extraction lacks resource quotas and failure cleanup The current gzip extractor handles destination write errors and waits for write completion; those parts of the original report should no longer be treated as unchanged. The import routes also now require a logged-in user before big-upload processing, as covered by GHSA-86wm-68pq-5jwq. However, extract() still writes expanded archive entries without per-entry, aggregate decompressed-byte, or entry-count quotas. Archive parsing still precedes document-type authorization. If extraction or parsing fails, import() notifies and rethrows before the later storage.remove() call, with no unconditional cleanup around that lifecycle. The reported residual risk is excessive storage consumption and retained extraction/staging artifacts from authenticated imports. Handling a write error and requiring login do not enforce a storage budget. Suggested remediation: add configurable streaming quotas based on actual decompressed bytes, cap entries and allowed entry types, bound concurrent imports, and clean local and uploadfs artifact

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm @apostrophecmsversion unspecified
  • npm @apostrophecms/import-export0 → 3.7.1
  • npm @apostrophecms/import-export< 3.7.1
  • package npmversion unspecified

How to fix CVE-2026-112955

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-112955. EPSS is 0.53%. Act only if a listed version of ApostropheCMS is an open-source is installed.

Which versions are affected?

Compare what you have installed with 0 → 3.7.1, < 3.7.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.53%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 20, 2026 · NIST NVD

    Detected

    ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.1 of the import-export module, an authenticated importer can submit archives whose decompressed bytes, entry count, and entry sizes are not bounded before document-type authorization, and extraction or parsing failures can leave staging and extracted artifacts without unconditional cleanup. The already-hardened pre-aut

  2. Oct 20, 2026 · NIST NVD

    Updated

    ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.1 of the import-export module, an authenticated importer can submit archives whose decompressed bytes, entry count, and entry sizes are not bounded before document-type authorization, and extraction or parsing failures can leave staging and extracted artifacts without unconditional cleanup. The already-hardened pre-aut

  3. Oct 21, 2026 · GitHub Advisory Database

    Fix available

    @apostrophecms/import-export fixed in 3.7.1

  4. Oct 21, 2026 · GitHub Advisory Database

    Fix available

    @apostrophecms/import-export fixed in 3.7.1

  5. Oct 21, 2026 · GitHub Advisory Database

    Updated

    ## Review scope and evidence limits Package: @apostrophecms/import-export, version 3.7.0. Release tag reviewed: @apostrophecms/import-export@3.7.0, commit 9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce (September 30, 2026). Current main reviewed: 5ce3732be0ebdebb4db0f8ef160c81e8671157e6. The importer, gzip extractor, import permission gate, and core permission implementation have no differences between

Sources

  • CVE.orgVulnerability recordCVE-2026-112955

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-112955

    30-day exploitation probability 0.53%

    first.org
  • GitHub Advisory DatabasePackage advisoryGHSA-9g7p-m758-rp72

    ApostropheCMS: Import archives can exhaust server storage and deny service

    github.com
  • GitLab Advisory DatabasePackage advisoryCVE-2026-112955

    Review scope and evidence limits Package: @apostrophecms/import-export, version 3.7.0. Release tag reviewed: @apostrophecms/import-export@3.7.0, commit 9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce (September 30, 2026). Current main reviewed: 5ce3732be0ebdebb4db0f8ef160c81e8671157e6. The importer, gzip extractor, import permission gate, and core permission implementation have no differences between tha

    advisories.gitlab.com
  • NIST NVDVulnerability recordCVE-2026-112955

    ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.1 of the import-export module, an authenticated importer can submit archives whose decompressed bytes, entry count, and entry sizes are not bounded before document-type authorization, and extraction o

    nvd.nist.gov
  • OpenSSF OSV / OSV ScannerPackage advisoryGHSA-9g7p-m758-rp72

    ApostropheCMS: Import archives can exhaust server storage and deny service

    osv.dev
  • Snyk Vulnerability DatabasePackage advisorySNYK-JS-APOSTROPHECMSIMPORTEXPORT-21523489

    Allocation of Resources Without Limits or Throttling

    security.snyk.io

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • Snyk Vulnerability DatabaseOct 26, 2026
  • GitLab Advisory DatabaseOct 23, 2026
  • GitHub Advisory DatabaseOct 22, 2026
  • CVE.orgOct 21, 2026
  • OpenSSF OSV / OSV ScannerOct 21, 2026
  • NIST NVDOct 21, 2026