CVE-2020-35711
HIGH
7.5
CVSS Score
Published: December 25, 2020 at 10:59 PM UTC
Updated: June 17, 2026 at 03:14 AM UTC
1 product affected across 1 vendorArc Swap
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
An issue has been discovered in the arc-swap crate before 0.4.8 (and 1.x before 1.1.0) for Rust. Use of arc_swap::access::Map with the Constant test helper (or with a user-supplied implementation of the Access trait) could sometimes lead to dangling references being returned by the map.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 0.4.81.0.0 ≤ v < 1.1.0
Affected range stops below 0.4.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.1.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://github.com/vorner/arc-swap/issues/45x_refsource_MISCThird Party Advisory
Source: [email protected]
https://rustsec.org/advisories/RUSTSEC-2020-0091.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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