Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-108711— Plastic Labs Honcho through 3.3.0 Incorrect Authorization via POST /v3/workspaces

Quick assessment

Affected
Plastic Labs honcho
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Plastic Labs 的 Honcho 系统（版本 3.3.0 及更早版本）中存在一个不正确的授权漏洞。该漏洞允许持有对等（peer）作用域或会话（session）作用域 API 密钥的用户读取工作区数据，原因是 方法仅检查工作区声明（workspace claim），而未充分验证其他必要的权限。攻击者可以通过向 端点提交其父级工作区的名称，从而获取工作区的元数据和配置信息，包括仅供工作区密钥或管理员密钥使用的 （自定义指令）。

CVSS 4.3 · Medium EPSS 0.28% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
Plastic Labs honcho ≤ 3.3.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-108711

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Plastic Labs Honcho through 3.3.0 Incorrect Authorization via POST /v3/workspaces
Source: CVE Program / CVE List V5
Vulnerability Description
Plastic Labs Honcho through 3.3.0 contains an incorrect authorization vulnerability that allows peer- or session-scoped API key holders to read workspace data because get_or_create_workspace checks only the workspace claim. Attackers can submit their parent workspace name to the POST /v3/workspaces endpoint to retrieve workspace metadata and configuration, including custom_instructions, reserved for workspace or admin keys.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Plastic Labs honcho 0 ~ 3.3.0 -

II. Public POCs for CVE-2026-108711

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-108711

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-108711 (1)

Vendor Advisories for CVE-2026-108711 (1)

Security Blog Posts for CVE-2026-108711 (1)

Other References for CVE-2026-108711 (1)

IV. Related Vulnerabilities

Same weakness: CWE-863

V. Comments for CVE-2026-108711

No comments yet

Leave a comment