CVE-2026-41898

HIGH EPSS 32.9%
Published Apr 24, 20262mo ago · Modified Jun 17, 20262w ago
8.3 CVSS 4.0
High
Find Similar
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
32.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-126
CWE-130

Affected Products 1

VendorProductVersionRange
rust-openssl_projectrust-openssl*≥0.9.24  –  <0.10.78

References 4

  • github.com https://github.com/rust-openssl/rust-openssl/commit/1d109020d98fff2fb2e45c39a373af3dff99b24c
    Patch
  • github.com https://github.com/rust-openssl/rust-openssl/pull/2607
    Issue Tracking
  • github.com https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78
    Release Notes
  • github.com https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-hppc-g8h3-xhp3
    Vendor Advisory

Remediation

  • github.com https://github.com/rust-openssl/rust-openssl/commit/1d109020d98fff2fb2e45c39a373af3dff99b24c
    Patch