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CVE-2026-113651Proof of concept (PoC) published · CISA

ApostropheCMS: Path traversal in uploadfs

CVSS score

3.3

EPSS probability

—

Risk score

0.3

Published

2 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

DayBreach AI Explanation

Verified against sources

ApostropheCMS uploadfs Path Traversal Vulnerability

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

The path traversal vulnerability identified as CVE-2026-113651 in ApostropheCMS and its uploadfs library allows attacker-controlled paths reaching the local backend to contain parent-directory segments, affecting file operations on the host filesystem. Patch status remains unconfirmed [S0].

Why does it matter?

It poses a security risk because it allows authenticated attackers to escape the configured upload directory and affect file read, write, and deletion operations on the host filesystem [S0].

What should be done?

  • Follow the relevant vendor advisories and updates [S0].
  • Update the upload library to secure versions [S0].
Chain of evidence and sources2 verified claims

CVE-2026-113651, uploadfs kütüphanesinde bir dizin geçişi zafiyetidir [S0].

S0 · daybreach-canonical

Zafiyet, ana dosya sistemindeki dosya okuma, yazma ve silme işlemlerini etkileyebilir [S0].

S0 · daybreach-canonical
Show the technical text from the sources

ApostropheCMS is an open-source Node.js content management system, and uploadfs is its file storage library. Prior to uploadfs 1.28.0, attacker-controlled paths that reach the local backend can contain parent-directory segments that escape the configured upload directory and affect file reads, writes, and deletion on the host filesystem. Exploitability depends on an application exposing the relevant uploadfs operations to untrusted path. This issue is fixed in uploadfs 1.28.0.

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

CWE: CWE-22

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-113651 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1apostrophecmsapostrophe View
2apostrophecmsuploadfs View
3npmuploadfs View
Total affected vendors: 2|Products: 3

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
3.3CVSS V3_1LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:NCVE CNA
3.3CVSS V31LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:NNVD
3.3CVSS 3.x—Vector not publishedGitHub Advisory
0.0CVSS 4.0—Vector not publishedGitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-113651 is associated with the following CWEs:

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-113651 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsHigh
UserGerekmiyor

Official Sources and Advisories

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-gmfx-5g6x-rr72vendor-advisoryhttps://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845cevendor-advisoryhttps://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350vendor-advisoryhttps://github.com/apostrophecms/apostrophe/releases/tag/uploadfs@1.28.0vendor-advisoryhttps://github.com/advisories/GHSA-gmfx-5g6x-rr72vendor-advisory

CVSS Vector Radar Chart

3.3 / 10
Attack VectorNetworkComplexityHighPrivilegesHighUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredHigh privileges
User InteractionNone required
Confidentiality (Gizlilik)High
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

A
apostrophecms logo
apostrophecms
N
npm logo
npm

Weakness Type (CWE & CAPEC)

CWE-22

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CVE-2026-113651 · ApostropheCMS: Path traversal in uploadfs