Sipeed PicoClaw pico.go rt.ReloadConfig authorization

published 2026-07-10 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-42776

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits: 0; none known

A vulnerability was detected in Sipeed PicoClaw up to 0.2.9. This vulnerability affects the function rt.ReloadConfig of the file pkg/channels/pico/pico.go. Performing a manipulation of the argument message.send results in missing authorization. It is possible to initiate the attack remotely. The exploit is now public and may be used. The reported GitHub issue was closed automatically due to inactivity.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 4 mo ago (2026-07-10)

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/sipeed/picoclaw/issues/3071 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C
CNA	3.0	5.4	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:X/RC:C
CNA	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P/E:POC/RL:ND/RC:C
CNA	4.0	2.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CNA	2.0	5.5	AV:N/AC:L/Au:S/C:N/I:P/A:P

Affected products

Sipeed PicoClaw

Classification

Weakness

CWE-862 Missing Authorization
CWE-863 Incorrect Authorization

References

github.com /sipeed/picoclaw/issues/3071
exploit, issue-tracking
vuldb.com /vuln/377260
vdb-entry, technical-description
vuldb.com /vuln/377260/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-15320
third-party-advisory
vuldb.com /submit/852942
third-party-advisory
github.com /sipeed/picoclaw/
product

Sources

CVE List CVE-2026-15320
NVD CVE-2026-15320

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary