# CVE-2026-16196 — Sipeed PicoClaw

> As of 2026-07-18, CVE-2026-16196 is a MEDIUM-severity vulnerability in Sipeed PicoClaw, CVSS v3.1 6.3, EPSS 0.3% (31.2th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-16196 as of 2026-07-18; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-18

## What is CVE-2026-16196?

A weakness has been identified in Sipeed PicoClaw up to 0.2.9. Impacted is the function isPrivateOrRestrictedIP of the file pkg/tools/integration/web.go of the component web_fetch. This manipulation causes server-side request forgery. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. Patch name: 2efbe5d560e7ed9bc5209c203dc4aa6ecdbc7405. To fix this issue, it is recommended to deploy a patch.

The record classifies CVE-2026-16196 under weakness class [CWE-918](https://intel.threadlinqs.com/cwe/CWE-918). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 79 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.3 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C`)
- **CVSS v4.0 base score:** 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 31.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-18

## Is CVE-2026-16196 being exploited?

It currently carries a trending score of 37 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **Sipeed**: PicoClaw

## How to fix CVE-2026-16196

No vendor patch reference has been recorded for CVE-2026-16196 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-16196

No threat campaign in the Threadlinqs corpus currently references CVE-2026-16196, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-07-20.

**Vendor advisory and patch**

- [github.com — issue tracking](https://github.com/sipeed/picoclaw/pull/3085)
- [github.com — patch](https://github.com/sipeed/picoclaw/commit/2efbe5d560e7ed9bc5209c203dc4aa6ecdbc7405)

**Exploit and proof of concept**

- [github.com — exploit](https://github.com/sipeed/picoclaw/issues/3077)

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/380012)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/380012/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-16196)
- [vuldb.com — third party advisory (852963)](https://vuldb.com/submit/852963)

**Issue tracking and product pages**

- [github.com — product](https://github.com/sipeed/picoclaw/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-16196
Full detection coverage and IOCs for threats exploiting CVE-2026-16196 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp