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WS-2023-0006

Date: August 19, 2025

In bumpalo prior to 3.11.1, the lifetime of the iterator produced by Vec::into_iter() is not constrained to the lifetime of the Bump that allocated the vector's memory. Using the iterator after the Bump is dropped causes use-after-free accesses.

Language: RUST

Severity Score

Related Resources (6)

https://github.com/fitzgen/bumpalo
https://github.com/fitzgen/bumpalo/commit/f63d7683e0fee66de4e25650f10c403f84b56adc
https://github.com/fitzgen/bumpalo/blob/main/CHANGELOG.md#3111
https://crates.io/crates/bumpalo
https://rustsec.org/advisories/RUSTSEC-2022-0078.html
https://www.mend.io/vulnerability-database/WS-2023-0006

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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