# slice-deque (crates.io) vulnerabilities

Source: https://junglewise.ai/threats/technologies/slice-deque  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/slice-deque.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in slice-deque (crates.io): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, Slice Ring Buffer and Slice Deque contains four unique double-free…, was published on 16 July 2025.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 5 (0 critical, 0 exploited in the wild)

## About slice-deque (crates.io)

Rust library implementing a double-ended queue using a fixed-size slice without additional heap allocation.

## Latest slice-deque (crates.io) vulnerabilities

- [Slice Ring Buffer and Slice Deque contains four unique double-free vulnerabilities triggered through safe APIs](https://junglewise.ai/threats/slice-ring-buffer-and-slice-deque-contains-four-unique-double-free-02dde4ab) (medium, CVSS 4, published 16 Jul 2025)
- [CVE-2021-29938: RUSTSEC-2021-0047 - SliceDeque::drain_filter can double drop an element if the predicate panics](https://junglewise.ai/threats/cve-2021-29938-double-free-in-slice-deque) (low, CVSS 3.1, published 19 Feb 2021)
- [RUSTSEC-2020-0158 - slice-deque is unmaintained](https://junglewise.ai/threats/rustsec-2020-0158-slice-deque-is-unmaintained-3061c768) (info, published 10 Feb 2020)
- [CVE-2019-15543: RUSTSEC-2019-0002 - Bug in SliceDeque::move_head_unchecked corrupts its memory](https://junglewise.ai/threats/cve-2019-15543-out-of-bounds-write-in-slice-deque) (low, CVSS 3, published 7 May 2019)
- [CVE-2018-20995: RUSTSEC-2018-0008 - Bug in SliceDeque::move_head_unchecked allows read of corrupted memory](https://junglewise.ai/threats/cve-2018-20995-memory-corruption-slice-deque) (low, CVSS 3, published 5 Dec 2018)

## Most severe slice-deque (crates.io) vulnerabilities

- [Slice Ring Buffer and Slice Deque contains four unique double-free vulnerabilities triggered through safe APIs](https://junglewise.ai/threats/slice-ring-buffer-and-slice-deque-contains-four-unique-double-free-02dde4ab) (medium, CVSS 4, published 16 Jul 2025)
- [CVE-2021-29938: RUSTSEC-2021-0047 - SliceDeque::drain_filter can double drop an element if the predicate panics](https://junglewise.ai/threats/cve-2021-29938-double-free-in-slice-deque) (low, CVSS 3.1, published 19 Feb 2021)
- [CVE-2019-15543: RUSTSEC-2019-0002 - Bug in SliceDeque::move_head_unchecked corrupts its memory](https://junglewise.ai/threats/cve-2019-15543-out-of-bounds-write-in-slice-deque) (low, CVSS 3, published 7 May 2019)
- [CVE-2018-20995: RUSTSEC-2018-0008 - Bug in SliceDeque::move_head_unchecked allows read of corrupted memory](https://junglewise.ai/threats/cve-2018-20995-memory-corruption-slice-deque) (low, CVSS 3, published 5 Dec 2018)
- [RUSTSEC-2020-0158 - slice-deque is unmaintained](https://junglewise.ai/threats/rustsec-2020-0158-slice-deque-is-unmaintained-3061c768) (info, published 10 Feb 2020)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other crates.io technologies

- [surrealdb (crates.io)](https://junglewise.ai/threats/technologies/surrealdb): 83 vulnerabilities
- [wasmtime (crates.io)](https://junglewise.ai/threats/technologies/wasmtime): 67 vulnerabilities
- [deno (crates.io)](https://junglewise.ai/threats/technologies/deno): 39 vulnerabilities
- [zebrad (crates.io)](https://junglewise.ai/threats/technologies/zebrad): 27 vulnerabilities
- [russh (crates.io)](https://junglewise.ai/threats/technologies/crates-io-russh): 26 vulnerabilities
- [openssl-src (crates.io)](https://junglewise.ai/threats/technologies/openssl-src): 26 vulnerabilities
- [openssl (crates.io)](https://junglewise.ai/threats/technologies/crates-io-openssl): 25 vulnerabilities
- [rustfs (crates.io)](https://junglewise.ai/threats/technologies/rustfs): 25 vulnerabilities
- [coreutils (crates.io)](https://junglewise.ai/threats/technologies/crates-io-coreutils): 21 vulnerabilities
- [ckb (crates.io)](https://junglewise.ai/threats/technologies/ckb): 19 vulnerabilities
- [apollo-router (crates.io)](https://junglewise.ai/threats/technologies/apollo-router): 13 vulnerabilities
- [deepseek-tui (crates.io)](https://junglewise.ai/threats/technologies/deepseek-tui): 13 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "slice-deque (crates.io) vulnerabilities", https://junglewise.ai/threats/technologies/slice-deque, 9 November 2026.