Hex package manager hex_core version 0.3.0 and earlier contains a Signing oracle…
Priority MEDIUM 40CWE-345Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-345.
Summary
Hex package manager hex_core version 0.3.0 and earlier contains a Signing oracle vulnerability in Package registry verification that can result in Package modifications not detected, allowing code execution. This attack appears to be exploitable via victim fetches packages from malicious/compromised mirror. This vulnerability appears to have been fixed in 0.4.0.
Why it matters now
EPSS 0.00877 59th percentileScored 2026-11-07
Fix Fixed hex_core (Hex): 0.4.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | hex_core (Hex) | before 0.4.0 | 0.4.0 | Patch available | GHSA-q3cc-rr2c-87r6 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- hex_core (Hex) Vendor— Affected before 0.4.0 Fixed in 0.4.0 Patch available GHSA-q3cc-rr2c-87r6
Remediation
- Fix · GHSA-q3cc-rr2c-87r6 hex_core (Hex) Fixed in 0.4.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-1000013
- 2026-10-03 Alias added: GHSA-q3cc-rr2c-87r6
References
More hexpm Hex Core vulnerabilities
- TI-2026-17411 Unsafe Deserialization of Erlang Terms in hex_core CVSS 4.0LOW 2.0
Sources
- CVE-2019-1000013 · CVE Program
- CVE-2019-1000013 · NVD
- FIRST EPSS
- GHSA-q3cc-rr2c-87r6 · GitHub Advisory Database · CC BY 4.0
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