CVE-2024-31989Public exploit

Cluster takeover via unsigned Redis manifest cache

Published May 21, 2024 · Updated Aug 2, 2024

Privilege escalation in Argo CD through 2.8.18, 2.9.14, 2.10.9, and 2.11.0 allows adjacent attackers to take over a Kubernetes cluster. The unauthenticated Redis server accepts attacker-written mfst entries whose FNV64a cacheEntryHash lacks a private-key signature, so repo-server treats injected manifests as trusted deployments. Exploitation requires pod-level network access to Redis; forged entries can deploy controller-privileged resources or expose Kubernetes objects.

CVSS severity9.0
Critical
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Argo CD through 2.8.18, 2.9.14, 2.10.9, and 2.11.0 allows adjacent attackers to take over a Kubernetes cluster. The unauthenticated Redis server accepts attacker-written mfst entries whose FNV64a cacheEntryHash lacks a private-key signature, so repo-server treats injected manifests as trusted deployments. Exploitation requires pod-level network access to Redis; forged entries can deploy controller-privileged resources or expose Kubernetes objects.

The record

CVE
CVE-2024-31989
Published
May 21, 2024
Updated
Aug 2, 2024
Vendor
Argo Project
Product
Argo CD
Classifications
CWE-327, T1610
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=0 <=2.10.9
  2. Affected versionversion=0 <=2.11.0
  3. Affected versionversion=0 <=2.8.18
  4. Affected versionversion=0 <=2.9.14
  5. Affected versionversion=<= 1.8.7
  6. Affected versionversion=>= 2.10.0-rc1, < 2.10.10
  7. Affected versionversion=>= 2.11.0-rc1, < 2.11.1
  8. Affected versionversion=< 2.8.19
  9. Affected versionversion=>= 2.9.0-rc1, < 2.9.15

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Argo Project · Argo CDversion=0 <=2.10.9; version=0 <=2.11.0; version=0 <=2.8.18; version=0 <=2.9.14; version=<= 1.8.7; version=>= 2.10.0-rc1, < 2.10.10; version=>= 2.11.0-rc1, < 2.11.1; version=< 2.8.19; version=>= 2.9.0-rc1, < 2.9.15

Published CVSS scores

9.0GitHub Security AdvisoryCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm
T1610Deploy Container

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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