Slack Morphism for Rust before 0.41.0 can accidentally leak Slack OAuth client information in application debug logs
Priority MEDIUM 41CWE-1258Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
Slack Morphism is an async client library for Rust. Prior to 0.41.0, it was possible for Slack OAuth client information to leak in application debug logs. Stricter and more secure debug formatting was introduced in v0.41.0 for OAuth secret types to reduce the possibility of printing sensitive information in application logs. As a workaround, do not print/output requests and responses for OAuth and client configurations in logs.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00917 60th percentileScored 2026-11-07
Fix Fixed slack-morphism-rust (abdolence): 0.41.0slack-morphism (crates.io): 0.41.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| abdolence | slack-morphism-rust | before 0.41.0 | 0.41.0 | Patch available | CNA |
| — | slack-morphism (crates.io) | before 0.41.0 | 0.41.0 | Patch available | GHSA-99j7-mhfh-w84p |
- slack-morphism-rust Vendorabdolence Affected before 0.41.0 Fixed in 0.41.0 Patch available CNA
- slack-morphism (crates.io) Vendor— Affected before 0.41.0 Fixed in 0.41.0 Patch available GHSA-99j7-mhfh-w84p
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:slack_morphism_project:slack_morphism:*:*:*:*:*:rust:*:* | before 0.41.0 | Vulnerable | Slack Morphism Project |
- cpe:2.3:a:slack_morphism_project:slack_morphism:*:*:*:*:*:rust:*:* Versions before 0.41.0 Vulnerable ·Slack Morphism Project
Remediation
- Fix · CNA slack-morphism-rust (abdolence) Fixed in 0.41.0
- Fix · GHSA-99j7-mhfh-w84p slack-morphism (crates.io) Fixed in 0.41.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-31162
- 2026-10-03 Alias added: GHSA-99j7-mhfh-w84p
References
Advisory 3
More abdolence vulnerabilities
- TI-2026-78863 Slack Morphism error logs expose valid request signatures CVSS 3.1MEDIUM 5.3
Sources
- CVE-2022-31162 · CVE Program
- CVE-2022-31162 · NVD
- FIRST EPSS
- GHSA-99j7-mhfh-w84p · GitHub Advisory Database · CC BY 4.0
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