CVE-2026-45784

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65c404ebc1348a7	Patch
https://github.com/rust-openssl/rust-openssl/pull/2638	Issue Tracking Patch
https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.80	Product Release Notes
https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-q6mq	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sfackler:openssl:*:*:*:*:*:rust:*:*

History

No history.

Information

Published : 2026-07-17 21:17

Updated : 2026-07-29 15:43

NVD link : CVE-2026-45784

Mitre link : CVE-2026-45784

CVE.ORG link : CVE-2026-45784

JSON object : View

Products Affected

sfackler

openssl

CWE

CWE-131

Incorrect Calculation of Buffer Size

CWE-787

Out-of-bounds Write

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