CVE-2026-30858Public exploitNetwork attack vector

Internal resource disclosure via unpinned DNS resolution

Published Mar 7, 2026 · Updated Mar 7, 2026

SSRF in WeKnora before 0.3.0 allows remote authenticated users to read internal HTTP resources through DNS rebinding. The web_fetch tool validates a hostname once, then passes the unchanged URL to fetchWithChromedp, whose browser resolves it again without DNS pinning. An account or agent with web search capability can exploit the TOCTOU gap to retrieve internal services, configuration data, or cloud metadata credentials.

CVSS severity6.5
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in WeKnora before 0.3.0 allows remote authenticated users to read internal HTTP resources through DNS rebinding. The web_fetch tool validates a hostname once, then passes the unchanged URL to fetchWithChromedp, whose browser resolves it again without DNS pinning. An account or agent with web search capability can exploit the TOCTOU gap to retrieve internal services, configuration data, or cloud metadata credentials.

The record

CVE
CVE-2026-30858
Published
Mar 7, 2026
Updated
Mar 7, 2026
Vendor
Tencent
Product
WeKnora
Classifications
CWE-918, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 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=< 0.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tencent · WeKnoraversion=< 0.3.0

Published CVSS scores

6.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Unsecured Credentials: Cloud Instance Metadata API

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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