CVE-2026-16197

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-07-19. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A security vulnerability has been detected in Sipeed PicoClaw up to 0.2.9. The affected element is the function handleMessageReceive of the file pkg/channels/feishu/feishu_64.go of the component Group Message Handler. Such manipulation leads to missing authorization. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The reported GitHub issue was closed automatically due to inactivity.

CVSS v3
6.3
EG Score
6.3(high)
EPSS
27.4%
KEV
Not listed

Published

July 18, 2026

Last Modified

July 20, 2026

Advisory Details (2)

Auto-updated Jul 19, 2026
No patch confirmed yet.
generic

[Security] PicoClaw Feishu reply-context expansion bypasses `allow_from` for fetched parent messages · Issue #3082 · sipeed/picoclaw · GitHub

https://github.com/sipeed/picoclaw/issues/3082
generic

GitHub - sipeed/picoclaw: Tiny, Fast, and Deployable anywhere — automate the mundane, unleash your creativity · GitHub

https://github.com/sipeed/picoclaw/

Vendor Advisories for CVE-2026-16197(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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. 2026-07-20 20:41 UTCNVD updateCVSS v4 → 2.1
  2. 2026-07-20 19:12 UTCMITRE cvelistV5CVSS v4 → 5.3
  3. 2026-07-20 17:50 UTCEG score recompute
  4. 2026-07-20 17:50 UTCGHSA enrichment
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:30 UTCEPSS rescore
  7. 2026-07-19 00:07 UTCEG score recompute
  8. 2026-07-19 00:05 UTCNVD updateCVSS v4 → 2.1
  9. 2026-07-18 23:10 UTCEG score recompute
  10. 2026-07-18 23:09 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16197?
CVE-2026-16197 is a medium vulnerability published on July 18, 2026. A security vulnerability has been detected in Sipeed PicoClaw up to 0.2.9. The affected element is the function handleMessageReceive of the file pkg/channels/feishu/feishu_64.go of the component Group Message Handler. Such manipulation leads to missing authorization. The attack can be launched…
When was CVE-2026-16197 disclosed?
CVE-2026-16197 was first published in the National Vulnerability Database on July 18, 2026, with the most recent update on July 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16197 actively exploited?
CVE-2026-16197 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-16197?
CVE-2026-16197 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-16197?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16197, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-16197

Explore →

Is Your Infrastructure Affected by CVE-2026-16197?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs