An issue was discovered in the smallvec crate before 0.6.10 for Rust.
Priority MEDIUM 46CWE-415Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- 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-415 and the CVSS impact.
Summary
An issue was discovered in the smallvec crate before 0.6.10 for Rust. There is a double free for certain grow attempts with the current capacity.
Why it matters now
EPSS 0.01862 79th percentileScored 2026-11-07
Fix Fixed smallvec (crates.io): 0.6.10
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 |
| — | smallvec (crates.io) | 0.6.5 to before 0.6.10 | 0.6.10 | Patch available | GHSA-mm7v-vpv8-xfc3 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- smallvec (crates.io) Vendor— Affected 0.6.5 to before 0.6.10 Fixed in 0.6.10 Patch available GHSA-mm7v-vpv8-xfc3
Remediation
- Fix · GHSA-mm7v-vpv8-xfc3 smallvec (crates.io) Fixed in 0.6.10 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2019-15551
- 2026-10-03 Alias added: GHSA-mm7v-vpv8-xfc3
References
Advisory 2
More servo Smallvec vulnerabilities
- TI-2019-11654 An issue was discovered in the smallvec crate before 0.6.10 for Rust. CVSS 3.0CRITICAL 9.8
- TI-2018-14953 An issue was discovered in the smallvec crate before 0.6.3 for Rust. CVSS 3.0CRITICAL 9.8
- TI-2021-07911 An issue was discovered in the smallvec crate before 0.6.14 and 1.x before 1.6.1 for Rust. CVSS 3.1CRITICAL 9.8
- TI-2018-15250 An issue was discovered in the smallvec crate before 0.6.13 for Rust. CVSS 3.1HIGH 7.5
Sources
- CVE-2019-15551 · CVE Program
- CVE-2019-15551 · NVD
- FIRST EPSS
- GHSA-mm7v-vpv8-xfc3 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-15551 · Red Hat security data · CC BY 4.0
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