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CVE-2026-5557— badlogic pi-mono pi-mom Slack Bot slack.ts authentication bypass

Quick assessment

Affected
badlogic pi-mono
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.

OSS Weekend是Mario Zechner个人开发者的一个AI智能体开发与LLM部署管理工具。 OSS Weekend 0.58.4及之前版本存在安全漏洞，该漏洞源于文件packages/mom/src/slack.ts存在身份验证绕过。

CVSS 6.3 · Medium EPSS 0.36% · P29
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I. Basic Information for CVE-2026-5557

Vulnerability Information
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Vulnerability Title
badlogic pi-mono pi-mom Slack Bot slack.ts authentication bypass
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in badlogic pi-mono up to 0.58.4. This issue affects some unknown processing of the file packages/mom/src/slack.ts of the component pi-mom Slack Bot. The manipulation results in authentication bypass using alternate channel. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
OSS Weekend 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OSS Weekend是Mario Zechner个人开发者的一个AI智能体开发与LLM部署管理工具。 OSS Weekend 0.58.4及之前版本存在安全漏洞，该漏洞源于文件packages/mom/src/slack.ts存在身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
badlogic pi-mono 0.58.0 -

II. Public POCs for CVE-2026-5557

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III. Intelligence Information for CVE-2026-5557

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Other References for CVE-2026-5557 (1)

Same Patch Batch · badlogic · 2026-04-05 · 3 CVEs total

CVE-2026-5556 6.3 MEDIUM badlogic pi-mono loader.ts discoverAndLoadExtensions code injection
CVE-2026-5533 4.3 MEDIUM badlogic pi-mono SVG Artifact SvgArtifact.ts cross site scripting

IV. Related Vulnerabilities

Same product: pi-mono
Same vendor: badlogic
Same weakness: CWE-288

V. Comments for CVE-2026-5557

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