handcraftedinthealps goodby-csv Potential Gadget Chain allowing Remote Code Execution
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Tampering
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-915.
Summary
handcraftedinthealps goodby-csv is a highly memory efficient, flexible and extendable open-source CSV import/export library. Prior to 1.4.3, goodby-csv could be used as part of a chain of methods that is exploitable when an insecure deserialization vulnerability exists in an application. This so-called "gadget chain" presents no direct threat but is a vector that can be used to achieve remote code execution if the application deserializes untrusted data due to another vulnerability. The problem is patched with Version 1.4.3.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| handcraftedinthealps | goodby-csv | before 1.4.3 | 1.4.3 | Patch available | CNA |
| — | handcraftedinthealps/goodby-csv (Packagist) | before 1.4.3 | 1.4.3 | Patch available | GHSA-x3c7-22c8-prg7 |
- goodby-csv Vendorhandcraftedinthealps Affected before 1.4.3 Fixed in 1.4.3 Patch available CNA
- handcraftedinthealps/goodby-csv (Packagist) Vendor— Affected before 1.4.3 Fixed in 1.4.3 Patch available GHSA-x3c7-22c8-prg7
Remediation
- Fix · CNA goodby-csv (handcraftedinthealps) Fixed in 1.4.3
- Fix · GHSA-x3c7-22c8-prg7 handcraftedinthealps/goodby-csv (Packagist) Fixed in 1.4.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-49597
- 2026-10-03 Alias added: GHSA-x3c7-22c8-prg7
References
Sources
- CVE-2025-49597 · CVE Program
- CVE-2025-49597 · NVD
- FIRST EPSS
- GHSA-x3c7-22c8-prg7 · GitHub Advisory Database · CC BY 4.0
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