CVE-2024-27135: apache software foundation apache pulsar Improper Input Validation
Vulnerability summary
CVE-2024-27135 is a critical (CVSS 9.9) Improper Input Validation vulnerability in apache software foundation apache pulsar. EPSS estimates a 5.98% chance of exploitation in the next 30 days, higher than 93.2% of scored vulnerabilities.
Timeline
- 12-03-2024PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
Improper input validation in the Pulsar Function Worker allows a malicious authenticated user to execute arbitrary Java code on the Pulsar Function worker, outside of the sandboxes designated for running user-provided functions. This vulnerability also applies to the Pulsar Broker when it is configured with "functionsWorkerEnabled=true". This issue affects Apache Pulsar versions from 2.4.0 to 2.10.5, from 2.11.0 to 2.11.3, from 3.0.0 to 3.0.2, from 3.1.0 to 3.1.2, and 3.2.0. 2.10 Pulsar Function Worker users should upgrade to at least 2.10.6. 2.11 Pulsar Function Worker users should upgrade to at least 2.11.4. 3.0 Pulsar Function Worker users should upgrade to at least 3.0.3. 3.1 Pulsar Function Worker users should upgrade to at least 3.1.3. 3.2 Pulsar Function Worker users should upgrade to at least 3.2.1. Users operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions.
CVSS metrics
3 scores · 3 sources · 1 version- CVE.orgCNA8.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HDiffers
- OSV · MavenEcosystem advisory · calculated8.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HDiffers
EPSS trend
Probability
5.98%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
0.00 pp
From 5.98% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-913Improper Control of Dynamically-Managed Code ResourcesThe product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.
Affected systems
Apache1 product
- pulsarEOL≥ 2.4.0, < 2.10.6 | ≥ 2.11.0, < 2.11.4 | ≥ 3.0.0, < 3.0.3 | ≥ 3.1.0, < 3.1.3 | 3.2.0
Apache software foundation1 product
- apache pulsar≥ 2.4.0, < 2.10.6 | ≥ 2.11.0, < 2.11.4 | ≥ 3.0.0, < 3.0.3 | ≥ 3.1.0, < 3.1.3 | ≥ 3.2.0, < 3.2.1
Org.apache.pulsar1 product
- pulsar-functions-worker≥ 2.4.0, < 2.10.6 | ≥ 2.11.0, < 2.11.4 | ≥ 3.0.0, < 3.0.3 | ≥ 3.1.0, < 3.1.3 | ≥ 3.2.0, < 3.2.1
3 vendors · 3 products
References
6 links- pulsar.apache.org/security/CVE-2024-27135/Vendor Advisory
- github.com/apache/pulsarPACKAGE