CVE-2024-23449 Elasticsearch Uncaught Exception

What is CVE-2024-23449?

CVE-2024-23449 is a medium-severity denial of service vulnerability in Elastic Elasticsearch, published on 29 Mar 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An uncaught exception in Elasticsearch >= 8.4.0 and < 8.11.1 occurs when an encrypted PDF is passed to an attachment processor through the REST API. The Elasticsearch ingest node that attempts to parse the PDF file will crash. This does not happen with password-protected PDF files or with unencrypted PDF files.

Weakness: CWE-248

Which versions are affected by CVE-2024-23449?

3 open source packages ship an affected version, including org.elasticsearch:elasticsearch and elasticsearch. It affects 1 product.

Products include Elastic Elasticsearch.

How do I fix CVE-2024-23449?

Upgrade org.elasticsearch:elasticsearch to 8.11.1 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-23449 being exploited?

There is no known exploitation of CVE-2024-23449 in the wild and no public exploit code.

Other vulnerabilities in Elastic Elasticsearch

• CVE-2015-1427 Elasticsearch Groovy Scripting Engine Remote Code Execution Exploited Critical 9.8
• CVE-2014-3120 Elasticsearch Remote Code Execution Exploited High 8.1
• CVE-2015-5377 Code injection in n/a Critical 9.8
• CVE-2026-72649 Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution High 8.8
• CVE-2026-72642 Use of Out-of-range Pointer Offset in the Elasticsearch Machine Learning Native Inference Process High 8.8

All Elastic Elasticsearch vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-elasticsearch-2024-23449, GHSA-pw39-f3m5-cxfc, UBUNTU-CVE-2024-23449.