# zstd (crates.io) vulnerabilities Source: https://junglewise.ai/threats/technologies/crates-io-zstd Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/crates-io-zstd.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 3 vulnerabilities in zstd (crates.io): 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, zstd out-of-bounds read in dictionary training from inconsistent samples, was published on 16 October 2026. 3 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 3 - Last 90 days: 3 - All time: 3 (0 critical, 0 exploited in the wild) ## About zstd (crates.io) Fast real-time compression algorithm and library with high compression ratios. ## Latest zstd (crates.io) vulnerabilities - [zstd out-of-bounds read in dictionary training from inconsistent samples](https://junglewise.ai/threats/rustsec-2026-0393-out-of-bounds-read-when-training-a-dictionary-from-429f94fd) (info, published 16 Oct 2026) - [zstd data leak from abandoned stream on reused context](https://junglewise.ai/threats/rustsec-2026-0391-data-from-an-abandoned-stream-leaks-into-the-next-dc6833d2) (info, published 16 Oct 2026) - [zstd memory exposure in write::Decoder on corrupt legacy frame](https://junglewise.ai/threats/rustsec-2026-0392-uninitialized-memory-exposed-by-write-decoder-on-a-fa4c4e49) (info, published 16 Oct 2026) ## Most severe zstd (crates.io) vulnerabilities - [zstd out-of-bounds read in dictionary training from inconsistent samples](https://junglewise.ai/threats/rustsec-2026-0393-out-of-bounds-read-when-training-a-dictionary-from-429f94fd) (info, published 16 Oct 2026) - [zstd data leak from abandoned stream on reused context](https://junglewise.ai/threats/rustsec-2026-0391-data-from-an-abandoned-stream-leaks-into-the-next-dc6833d2) (info, published 16 Oct 2026) - [zstd memory exposure in write::Decoder on corrupt legacy frame](https://junglewise.ai/threats/rustsec-2026-0392-uninitialized-memory-exposed-by-write-decoder-on-a-fa4c4e49) (info, published 16 Oct 2026) ## Vulnerabilities per week 3 vulnerabilities in the last four weeks, up from none in the four before. | 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 | 3 | 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, "zstd (crates.io) vulnerabilities", https://junglewise.ai/threats/technologies/crates-io-zstd, 9 November 2026.