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CVE-2026-45784

7.1 · HIGH

rust-openssl provides OpenSSL bindings for the Rust programming language.

Published Jul 17, 2026CWE-131EPSS 0.13%

Overview

CVE-2026-45784 is a high-severity vulnerability. It was published on July 17, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.50 until 0.10.80, CipherCtxRef::cipher_update_inplace in openssl/src/cipher_ctx.rs incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers EVP_aes_{128,192,256}_wrap_pad. For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This issue is fixed in version 0.10.80.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65c404ebc1348a7GitHubgithub.com/rust-openssl/rust-openssl/pull/2638GitHubgithub.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.80GitHubgithub.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-q6mq

How CyberStrike helps

Frequently asked questions

What is CVE-2026-45784?

CVE-2026-45784 is a high-severity vulnerability. It was published on July 17, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-45784?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-45784?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-45784?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-45784 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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