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CVE-2026-41898 Details

Description

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/rust-openssl/rust-openssl/commit/1d109020d98fff2fb2e45c39a373af3dff99b24c	[email protected]	Patch
https://github.com/rust-openssl/rust-openssl/pull/2607	[email protected]	Issue Tracking
https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78	[email protected]	Release Notes
https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-hppc-g8h3-xhp3	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-126	Buffer Over-read	[email protected]
CWE-130	Improper Handling of Length Parameter Inconsistency	[email protected]

Affected Products

Product	Versions
rust-openssl project rust-openssl	>= 0.9.24, < 0.10.78
CPE cpe:2.3:a:rust-openssl_project:rust-openssl::::::rust::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jul 15, 2026	Modified Analysis	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 28, 2026	Initial Analysis	[email protected]
Apr 24, 2026	New CVE Received	[email protected]