CVE-2026-15605Network attack vector

Limited data disclosure via weak artifact digest

Published Jul 13, 2026 · Updated Jul 13, 2026

Weak artifact integrity validation in Weights & Biases wandb 0.25.2.dev1 allows remote authenticated users to disclose limited data. The artifact download path accepts legacy MD5 digests for integrity checks instead of requiring a collision-resistant SHA-256 content digest. Exploitation requires authenticated network access and a difficult, high-complexity collision or substitution condition; only limited disclosure is reported.

CVSS severity2.3
Low
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak artifact integrity validation in Weights & Biases wandb 0.25.2.dev1 allows remote authenticated users to disclose limited data. The artifact download path accepts legacy MD5 digests for integrity checks instead of requiring a collision-resistant SHA-256 content digest. Exploitation requires authenticated network access and a difficult, high-complexity collision or substitution condition; only limited disclosure is reported.

The record

CVE
CVE-2026-15605
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
Weights & Biases
Product
wandb
Classifications
CWE-328, CWE-327
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 13, 2026Record 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=0.25.2.dev1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Weights & Biases · wandbversion=0.25.2.dev1

Published CVSS scores

2.1VulDBAV:N/AC:H/Au:S/C:P/I:N/A:N
2.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.1VulDBCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1VulDBCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-328Use of Weak Hash
CWE-327Use of a Broken or Risky Cryptographic Algorithm

Public exploit references

No public exploit references are available in this record.

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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