CVE-2026-53535Network attack vector

Arbitrary file write via traversal and symlinks

Published Jul 16, 2026 · Updated Jul 16, 2026

Path traversal in Activepieces before 0.82.0 allows remote authenticated users to overwrite host files through Enterprise git-sync. The server builds clone and state paths from unchecked repository slugs and externalId values and follows repository-controlled symbolic links, allowing writes to resolve outside the temporary workspace. Reachability requires a self-hosted Enterprise Edition deployment using git-sync and WRITE_PROJECT_RELEASE permission; resulting writes can tamper with files, interrupt service, or execute code where the process account can write.

CVSS severity5.9
Medium
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Activepieces before 0.82.0 allows remote authenticated users to overwrite host files through Enterprise git-sync. The server builds clone and state paths from unchecked repository slugs and externalId values and follows repository-controlled symbolic links, allowing writes to resolve outside the temporary workspace. Reachability requires a self-hosted Enterprise Edition deployment using git-sync and WRITE_PROJECT_RELEASE permission; resulting writes can tamper with files, interrupt service, or execute code where the process account can write.

The record

CVE
CVE-2026-53535
Published
Jul 16, 2026
Updated
Jul 16, 2026
Vendor
Activepieces
Product
Activepieces
Classifications
CWE-59, CWE-22, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.82.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Activepieces · Activepiecesversion=< 0.82.0

Published CVSS scores

5.9GitHubCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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