CVE-2024-27317Network attack vector

Authenticated file overwrite via archive path traversal

Published Mar 12, 2024 · Updated Feb 13, 2025

Path traversal in affected Apache Pulsar releases allows remote authenticated users to write files via crafted function archives. The Functions Worker extracts JAR and NAR ZIP entries without rejecting '..' path elements, so crafted names escape the designated extraction directory. Exploitation requires function-upload authentication and an enabled Functions Worker, including brokers configured with functionsWorkerEnabled=true, and permits creation or modification of process-accessible files.

CVSS severity8.4
High
EPSS probability56.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in affected Apache Pulsar releases allows remote authenticated users to write files via crafted function archives. The Functions Worker extracts JAR and NAR ZIP entries without rejecting '..' path elements, so crafted names escape the designated extraction directory. Exploitation requires function-upload authentication and an enabled Functions Worker, including brokers configured with functionsWorkerEnabled=true, and permits creation or modification of process-accessible files.

The record

CVE
CVE-2024-27317
Published
Mar 12, 2024
Updated
Feb 13, 2025
Vendor
The Apache Software Foundation
Product
Apache Pulsar
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.11.0 <2.11.4
  2. Affected versionversion=2.4.0 <2.10.6
  3. Affected versionversion=3.0.0 <3.0.3
  4. Affected versionversion=3.1.0 <3.1.3
  5. Affected versionversion=3.2.0 <3.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Pulsarversion=2.11.0 <2.11.4; version=2.4.0 <2.10.6; version=3.0.0 <3.0.3; version=3.1.0 <3.1.3; version=3.2.0 <3.2.1

Published CVSS scores

9.9NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.4Apache Software FoundationCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo