CVE-2026-73080

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (42nd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

SeaweedFS is a distributed storage system. Prior to 4.24, VolumeServer.FetchAndWriteNeedle in weed/server/volume_grpc_remote.go fetches a caller-supplied remote endpoint through weed/remote_storage/s3/s3_storage_client.go and writes the response into a needle. The RPC performs no authentication and no target validation, allowing anyone who can reach a volume server's gRPC port to cause requests to arbitrary hosts, including loopback, link-local, RFC 1918, and cloud metadata endpoints such as 169.254.169.254, and read the response. On cloud deployments, this can disclose instance metadata and IAM credentials and reach otherwise unexposed internal services. The volume server gRPC plane is unauthenticated by default, and configuring documented JWT signing keys does not protect this RPC. This issue is fixed in version 4.24.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
57
EG Risk 57/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

September 9, 2026

Advisory Details (4)

Auto-updated Oct 3, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available

Unauthenticated SSRF with response read-back via VolumeServer.FetchAndWriteNeedle · Advisory · seaweedfs/seaweedfs · GitHub

https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-87fv-vqqr-m4jr
github_release Patch Available

4.24

Patch available: seaweedfs/seaweedfs 4.24

https://github.com/seaweedfs/seaweedfs/releases/tag/4.24
github_pr

volume: gate FetchAndWriteNeedle behind admin auth and refuse internal endpoints

Fix merged in seaweedfs/seaweedfs PR #9441 on 2026-05-12 — awaiting tagged release

https://github.com/seaweedfs/seaweedfs/pull/9441
github_commit

commit 69da20bdaec9 (seaweedfs/seaweedfs)

Fix landed in seaweedfs/seaweedfs commit 69da20bdaec9 — awaiting tagged release

https://github.com/seaweedfs/seaweedfs/commit/69da20bdaec923e5a43d8aa71bf3c0a2051fc019

Vendor Advisories for CVE-2026-73080(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/seaweedfs/seaweedfs—
  • every version up to 0.0.0-20260512171120-69da20bdaec9: fixed in 0.0.0-20260512171120-69da20bdaec9
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-05 02:34 UTCEG score recompute
  2. 2026-10-04 23:22 UTCEPSS rescore
  3. 2026-10-03 21:00 UTCEG score recompute
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  1. 2026-09-18 19:28 UTCEPSS rescore
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  22. 2026-09-05 17:47 UTCEG score recompute
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  25. 2026-09-04 05:07 UTCEPSS rescore
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  30. 2026-08-30 22:12 UTCEG score recompute
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  43. 2026-08-24 14:40 UTCEG score recompute
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  65. 2026-08-13 22:42 UTCEG score recompute
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  67. 2026-08-13 15:28 UTCEG score recompute
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  70. 2026-08-12 13:51 UTCEPSS rescore
  71. 2026-08-11 16:36 UTCEG score recompute
  72. 2026-08-11 16:06 UTCEG score recompute
  73. 2026-08-11 16:06 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-73080?
CVE-2026-73080 is a critical vulnerability published on August 11, 2026. SeaweedFS is a distributed storage system. Prior to 4.24, VolumeServer.FetchAndWriteNeedle in weed/server/volumegrpcremote.go fetches a caller-supplied remote endpoint through weed/remotestorage/s3/s3storage_client.go and writes the response into a needle. The RPC performs no authentication and no…
When was CVE-2026-73080 disclosed?
CVE-2026-73080 was first published on August 11, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73080 actively exploited?
CVE-2026-73080 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73080?
CVE-2026-73080 has a CVSS base score of 9.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73080?
A fix for CVE-2026-73080 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73080 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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