CVE-2026-25541

Katalog CVE

CVSS 7.5 · High EPSS 0,61%

Kerentanan Integer Overflow to Buffer Overflow pada tokio-rs bytes. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Bytes is a utility library for working with bytes. From version 1.2.1 to before 1.11.1, Bytes is vulnerable to integer overflow in BytesMut::reserve. In the unique reclaim path of BytesMut::reserve, if the condition "v_capacity >= new_cap + offset" uses an unchecked addition. When new_cap + offset overflows usize in release builds, this condition may incorrectly pass, causing self.cap to be set to a value that exceeds the actual allocated capacity. Subsequent APIs such as spare_capacity_mut() then trust this corrupted cap value and may create out-of-bounds slices, leading to UB. This behavior is observable in release builds (integer overflow wraps), whereas debug builds panic due to overflow checks. This issue has been patched in version 1.11.1.

Rincian

Terbit di NVD

4 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-680: Integer Overflow to Buffer Overflow

EPSS (30 hari)

0,61% peluang dieksploitasi; lebih tinggi dari 47,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/tokio-rs/bytes/security/advisories/GHSA-434x-w66g-qw3r exploit · advisory vendor
• https://github.com/tokio-rs/bytes/commit/d0293b0e35838123c51ca5dfdf468ecafee4398f patch
• https://rustsec.org/advisories/RUSTSEC-2026-0007.html exploit · advisory pihak ketiga
• https://github.com/tokio-rs/bytes/releases/tag/v1.11.1 product · release notes