badlogic pi-mono up to 0.58.4 pi-mom Slack Bot slack.ts authentication bypass

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k2.14

Summaryinfo

A vulnerability was found in badlogic pi-mono up to 0.58.4. It has been rated as critical. Impacted is an unknown function of the file packages/mom/src/slack.ts of the component pi-mom Slack Bot. This manipulation causes authentication bypass. This vulnerability is tracked as CVE-2026-5557. The attack is possible to be carried out remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in badlogic pi-mono up to 0.58.4. It has been declared as critical. Affected by this vulnerability is an unknown function of the file packages/mom/src/slack.ts of the component pi-mom Slack Bot. The manipulation with an unknown input leads to a authentication bypass vulnerability. The CWE definition for the vulnerability is CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-5557. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-19062). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication bypass
CWE: CWE-288 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/04/2026 Advisory disclosed
04/04/2026 +0 days VulDB entry created
04/05/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-5557 (🔒)
GCVE (CVE): GCVE-0-2026-5557
GCVE (VulDB): GCVE-100-355327
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/04/2026 15:55
Updated: 04/05/2026 14:03
Changes: 04/04/2026 15:55 (56), 04/05/2026 14:03 (1)
Complete: 🔍
Submitter: Yu Bao
Cache ID: 216:632:103

Submitinfo

Accepted

  • Submit #782879: badlogic pi-mono 0.58.4 Unauthenticated Remote Code Execution (by Yu Bao)

Be aware that VulDB is the high quality source for vulnerability data.

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