CVE-2024-28122Public exploitNetwork attack vector

Service interruption via unbounded JWE decompression

Published Mar 9, 2024 · Updated Apr 16, 2025

Resource exhaustion in lestrrat-go jwx before 1.2.29 and jwx/v2 before 2.0.21 allows remote authenticated users to interrupt service via JWE. The jwe.Decrypt path inflates attacker-controlled compressed plaintext without bounding the decompressed buffer, consuming excessive memory and processing time. A trusted public key is required; v2 JWT processing is exposed only when JWE handling is explicitly enabled, and a sufficiently large payload can freeze or exhaust the recipient process.

CVSS severity6.8
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in lestrrat-go jwx before 1.2.29 and jwx/v2 before 2.0.21 allows remote authenticated users to interrupt service via JWE. The jwe.Decrypt path inflates attacker-controlled compressed plaintext without bounding the decompressed buffer, consuming excessive memory and processing time. A trusted public key is required; v2 JWT processing is exposed only when JWE handling is explicitly enabled, and a sufficiently large payload can freeze or exhaust the recipient process.

The record

CVE
CVE-2024-28122
Published
Mar 9, 2024
Updated
Apr 16, 2025
Vendor
lestrrat-go
Product
jwx
Classifications
CWE-400, T1499.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record 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=>= 1.2.0, < 1.2.29
  2. Affected versionversion=1.2.0 <1.2.29
  3. Affected versionversion=>= 2.0.0, < 2.0.21
  4. Affected versionversion=2.0.0 <2.0.21

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

lestrrat-go · jwxversion=>= 1.2.0, < 1.2.29; version=1.2.0 <1.2.29; version=>= 2.0.0, < 2.0.21; version=2.0.0 <2.0.21

Published CVSS scores

6.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.003Application Exhaustion Flood

Public exploit references

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

Technologies

Your stack

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Your stack

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