Improper Validation of Integrity Check Value Affecting rust-zip package, versions <9.0.5+ds-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Oct 2026
- disclosed26 Oct 2026
Introduced: 26 Oct 2026
NewCVE-2026-115906 (opens in a new tab)How to fix?
Upgrade Debian:unstable rust-zip to version 9.0.5+ds-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rust-zip package and not the rust-zip package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
zip is a zip library for Rust that supports reading and writing simple ZIP files. From 0.6.0 until 9.0.0, the AES entry reader in src/aes.rs verifies its HMAC only when the attacker-controlled data counter reaches zero. If the underlying bounded reader reaches the real end of the archive while data_remaining is still positive, or if an encrypted entry has no payload, the reader can return a clean end of stream without reading and comparing the authentication tag. Applications using by_index_decrypt, by_name_decrypt, by_path_decrypt, or password-enabled by_index_with_options can therefore accept modified plaintext without an authentication error. This issue is fixed in version 9.0.0.