---
cve: "CVE-2026-45784"
severity: "MEDIUM"
cvss: 5.1
epss: "13%"
vendor: "rust-openssl"
kev: false
exploited: false
published: "2026-07-17 21:17:06"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T07:48:36+02:00"
---

# CVE-2026-45784

> 5.1 MEDIUM · 🧪 PoC

## Beschreibung

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-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 35be7ae43b207fc0448a648a21e9156bc360c9af (Commit)
- 19eceb26f2404aae187e5444e65c404ebc1348a7 (Commit)

## Referenzen

- <https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-q6mq>
- <https://github.com/rust-openssl/rust-openssl/pull/2638>
- <https://github.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65c404ebc1348a7>
- <https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.80>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45784) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_