# zstd-safe (crates.io) vulnerabilities Source: https://junglewise.ai/threats/technologies/zstd-safe Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/zstd-safe.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 12 vulnerabilities in zstd-safe (crates.io): 0 in the last 7 days and 12 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, zstd-safe use-after-free in multithreaded compression context, was published on 16 October 2026. 12 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 12 - Last 90 days: 12 - All time: 12 (0 critical, 0 exploited in the wild) ## About zstd-safe (crates.io) Rust bindings and safe wrapper for the zstd compression library. ## Latest zstd-safe (crates.io) vulnerabilities - [zstd-safe use-after-free in multithreaded compression context](https://junglewise.ai/threats/rustsec-2026-0406-use-after-free-when-changing-a-multithreaded-context-0c474512) (info, published 16 Oct 2026) - [zstd-safe double free in DCtx::try_clone](https://junglewise.ai/threats/rustsec-2026-0404-double-free-in-dctx-try-clone-108878f4) (info, published 16 Oct 2026) - [zstd-safe Seekable decompress buffer overrun on invalid offset](https://junglewise.ai/threats/rustsec-2026-0398-seekable-decompress-sets-a-vec-length-beyond-its-2f278ece) (info, published 16 Oct 2026) - [zstd-safe Seekable null or out-of-bounds seek table read](https://junglewise.ai/threats/rustsec-2026-0396-seekable-reads-a-null-or-out-of-bounds-seek-table-4b9e21ae) (info, published 16 Oct 2026) - [zstd-safe use-after-free in dictionary decompression context](https://junglewise.ai/threats/rustsec-2026-0400-use-after-free-of-a-dictionary-after-a-one-shot-call-541157eb) (info, published 16 Oct 2026) - [zstd-safe out-of-bounds read in seekable stream compression](https://junglewise.ai/threats/rustsec-2026-0405-out-of-bounds-read-with-an-out-of-range-inbuffer-pos-610ef200) (info, published 16 Oct 2026) - [zstd-safe heap buffer overflow in CCtx::try_clone](https://junglewise.ai/threats/rustsec-2026-0402-heap-buffer-overflow-in-cctx-try-clone-on-a-8f6c7847) (info, published 16 Oct 2026) - [zstd-safe use-after-free in dict initialization](https://junglewise.ai/threats/rustsec-2026-0399-use-after-free-through-init-using-cdict-and-init-9473c803) (info, published 16 Oct 2026) - [zstd-safe memory exposure in streaming decompression](https://junglewise.ai/threats/rustsec-2026-0403-uninitialized-memory-exposed-when-streaming-b7ceb3c6) (info, published 16 Oct 2026) - [zstd-safe out-of-bounds read in train_from_buffer with sample size overflow](https://junglewise.ai/threats/rustsec-2026-0401-out-of-bounds-read-in-train-from-buffer-when-sample-b8e1d058) (info, published 16 Oct 2026) - [zstd-safe use-after-free in CParameter::StableInBuffer](https://junglewise.ai/threats/rustsec-2026-0395-use-after-free-with-cparameter-stableinbuffer-c8274f38) (info, published 16 Oct 2026) - [zstd-safe OutBuffer::around_pos uninitialized memory exposure](https://junglewise.ai/threats/rustsec-2026-0397-outbuffer-around-pos-exposes-uninitialized-memory-cd22bedc) (info, published 16 Oct 2026) ## Most severe zstd-safe (crates.io) vulnerabilities - [zstd-safe use-after-free in multithreaded compression context](https://junglewise.ai/threats/rustsec-2026-0406-use-after-free-when-changing-a-multithreaded-context-0c474512) (info, published 16 Oct 2026) - [zstd-safe double free in DCtx::try_clone](https://junglewise.ai/threats/rustsec-2026-0404-double-free-in-dctx-try-clone-108878f4) (info, published 16 Oct 2026) - [zstd-safe Seekable decompress buffer overrun on invalid offset](https://junglewise.ai/threats/rustsec-2026-0398-seekable-decompress-sets-a-vec-length-beyond-its-2f278ece) (info, published 16 Oct 2026) - [zstd-safe Seekable null or out-of-bounds seek table read](https://junglewise.ai/threats/rustsec-2026-0396-seekable-reads-a-null-or-out-of-bounds-seek-table-4b9e21ae) (info, published 16 Oct 2026) - [zstd-safe use-after-free in dictionary decompression context](https://junglewise.ai/threats/rustsec-2026-0400-use-after-free-of-a-dictionary-after-a-one-shot-call-541157eb) (info, published 16 Oct 2026) - [zstd-safe out-of-bounds read in seekable stream compression](https://junglewise.ai/threats/rustsec-2026-0405-out-of-bounds-read-with-an-out-of-range-inbuffer-pos-610ef200) (info, published 16 Oct 2026) - [zstd-safe heap buffer overflow in CCtx::try_clone](https://junglewise.ai/threats/rustsec-2026-0402-heap-buffer-overflow-in-cctx-try-clone-on-a-8f6c7847) (info, published 16 Oct 2026) - [zstd-safe use-after-free in dict initialization](https://junglewise.ai/threats/rustsec-2026-0399-use-after-free-through-init-using-cdict-and-init-9473c803) (info, published 16 Oct 2026) - [zstd-safe memory exposure in streaming decompression](https://junglewise.ai/threats/rustsec-2026-0403-uninitialized-memory-exposed-when-streaming-b7ceb3c6) (info, published 16 Oct 2026) - [zstd-safe out-of-bounds read in train_from_buffer with sample size overflow](https://junglewise.ai/threats/rustsec-2026-0401-out-of-bounds-read-in-train-from-buffer-when-sample-b8e1d058) (info, published 16 Oct 2026) ## Vulnerabilities per week 12 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 | 12 | 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-safe (crates.io) vulnerabilities", https://junglewise.ai/threats/technologies/zstd-safe, 9 November 2026.