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NVD / CVE Program· CNA GitHub_M

CVE-2025-59537: argo-cd is vulnerable to unauthenticated DoS attack via malformed Gogs webhook payload

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.60% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: github.com/argoproj/argo-cd/v2 (Go) 2.14.20; github.com/argoproj/argo-cd/v3 (Go) 3.0.19, 3.1.8, 3.2.0-rc2; govulncheck-vulndb (openSUSE:Tumbleweed) 0.0.20251023T162509-1.1.

Low priority for now. Upgrade to github.com/argoproj/argo-cd/v2 (Go) 2.14.20; github.com/argoproj/argo-cd/v3 (Go) 3.0.19, 3.1.8, 3.2.0-rc2; govulncheck-vulndb (openSUSE:Tumbleweed) 0.0.20251023T162509-1.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Versions 1.2.0 through 1.8.7, 2.0.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.7 and 3.0.18 are vulnerable to malicious API requests which can crash the API server and cause denial of service to legitimate clients. With the default configuration, no webhook.gogs.secret set, Argo CD’s /api/webhook endpoint will crash the entire argocd-server process when it receives a Gogs push event whose JSON field commits[].repo is not set or is null. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Oct 1, 2025
Updated
Oct 12, 2026
EPSS
0.6% · 49th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-59537

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
argoprojargo cd

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • argoproj argo cd1.2.0 and later · up to 1.8.7 inclusive
  • argoproj argo cd2.0.0 and later · before 2.14.20
  • argoproj argo cd3.0.0 and later · before 3.0.19
  • argoproj argo cd3.1.0 and later · before 3.1.8
  • argoproj argo cd3.2.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • argoproj argo-cd

    • >= 1.2.0, <= 1.8.7, >= 2.0.0-rc1, < 2.14.20, >= 3.2.0-rc1, < 3.2.0-rc2, >= 3.1.0-rc1, < 3.1.8, >= 3.0.0-rc1, < 3.0.19affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Gogithub.com/argoproj/argo-cdfrom 1.2.0 · up to and including 1.8.7—
Gogithub.com/argoproj/argo-cdfrom 1.2.0—
Gogithub.com/argoproj/argo-cd/v2from 2.0.0-rc1 · before 2.14.202.14.20
Gogithub.com/argoproj/argo-cd/v2before 2.14.202.14.20
Gogithub.com/argoproj/argo-cd/v3from 3.0.0-rc1 · before 3.0.193.0.19
Gogithub.com/argoproj/argo-cd/v3from 3.1.0-rc1 · before 3.1.83.1.8
Gogithub.com/argoproj/argo-cd/v3from 3.2.0-rc1 · before 3.2.0-rc23.2.0-rc2
openSUSE:Tumbleweedgovulncheck-vulndbbefore 0.0.20251023T162509-1.10.0.20251023T162509-1.1

Same product

argoproj: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-55190Argo CD: Project API Token Exposes Repository Credentials
    41Plan
  • CVE-2022-29165Argo CD will blindly trust JWT claims if anonymous access is enabled
    41Plan
  • CVE-2024-21652Argo CD vulnerable to Bypassing of Brute Force Protection via Application Crash and In-Memory Data Loss
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-55191Sep 30, 2025 · Repository Credentials Race Condition Crashes Argo CD Server
    21Monitor
  • ← EarlierCVE-2025-59531Oct 1, 2025 · Unauthenticated argocd-server panic via a malicious Bitbucket-Server webhook payload
    30Monitor
  • Later →CVE-2025-59538Oct 1, 2025 · Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook
    33Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Go:github.com/argoproj/argo-cd/v22.14.20Package registry (OSV)
Go:github.com/argoproj/argo-cd/v33.0.19Package registry (OSV)
Go:github.com/argoproj/argo-cd/v33.1.8Package registry (OSV)
Go:github.com/argoproj/argo-cd/v33.2.0-rc2Package registry (OSV)
opensuse:govulncheck-vulndb0.0.20251023T162509-1.1 · openSUSE:TumbleweedPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records