CVE-2024-23449

Elasticsearch 8.4.0 – 8.11.1

Published

29 March 2024

Modified

17 June 2026

Patch / advisory

View advisory

CVSS Score v3.1 4.3

Click a component to see what it means

Raw vector

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

EPSS Score 0.0068 51th percentile

Risk Priority 38 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2024-23449 is a medium-severity Uncaught Exception (CWE-248) vulnerability in Elastic Elasticsearch. Its CVSS base score is 4.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steganography (T1001.002); ranked in the top 49% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-8 (Security and Privacy Engineering Principles) and SC-24 (Fail in Known State) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2024-0982

Vulnerability Data

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.

CWE(s): CWE-248 NVD-CWE-Other

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.002 Steganography Command And Control

Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.

attack.mitre.org →

T1001.003 Protocol or Service Impersonation Command And Control

Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.

attack.mitre.org →

T1007 System Service Discovery Discovery

Adversaries may try to gather information about registered local system services.

attack.mitre.org →

T1016 System Network Configuration Discovery Discovery

Adversaries may look for details about the network configuration and settings, such as IP and/or MAC addresses, of systems they access or through information discovery of remote systems.

attack.mitre.org →

T1020.001 Traffic Duplication Exfiltration

Adversaries may leverage traffic mirroring in order to automate data exfiltration over compromised infrastructure.

attack.mitre.org →

T1021 Remote Services Lateral Movement

Adversaries may use [Valid Accounts](https://attack.

attack.mitre.org →

Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-37280Same product: Elastic Elasticsearch

CVE-2023-31419Same product: Elastic Elasticsearch

CVE-2026-63140Same product: Elastic Elasticsearch

CVE-2025-68390Same product: Elastic Elasticsearch

CVE-2024-43709Same product: Elastic Elasticsearch

CVE-2025-68384Same product: Elastic Elasticsearch

CVE-2025-37727Same product: Elastic Elasticsearch

CVE-2023-31417Same product: Elastic Elasticsearch

CVE-2023-49921Same product: Elastic Elasticsearch

CVE-2023-46674Same product: Elastic Elasticsearch

Affected Assets

elastic

elasticsearch

8.4.0 — 8.11.1

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-8 Security and Privacy Engineering Principles partial match

Security engineering principles include robust exception management to keep the system in a defined state.

SC-24 Fail in Known State partial match

Fail-in-known-state reduces the impact when an uncaught exception occurs by preserving a safe condition.

SI-11 Error Handling partial match

Error handling requirements force structured catching and response to exceptions instead of allowing them to propagate uncaught.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match

blocks

Secure SDLC practices explicitly require structured exception handling to prevent uncaught exceptions from reaching production.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match

removes

A.5.15 Access control partial match

removes

A.5.16 Identity management partial match

removes

A.5.17 Authentication information partial match

removes

A.5.18 Access rights partial match

removes

A.8.10 Information deletion partial match

removes