CVE-2026-45784: rust-openssl provides OpenSSL bindings for the Rust programming language
Affects rust-opensslSource GCVE Database
Not known to be exploited · CVSS 7.1 High · fixed in 0.10.80 : patch rust-openssl soon.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.10.80
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10rust-opensslpkg:deb/ubuntu/rust-openssl?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSrust-opensslpkg:deb/ubuntu/rust-openssl?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu Pro 24.04 LTSrust-opensslpkg:deb/ubuntu/rust-openssl?arch=source&distro=esm-apps/nobleOther threats | Affected
| Fixed in– |
Ubuntu Pro 22.04 LTSrust-opensslpkg:deb/ubuntu/rust-openssl?arch=source&distro=esm-apps/jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTSrust-opensslpkg:deb/ubuntu/rust-openssl?arch=source&distro=esm-apps/focalOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available in rust-openssl version 0.10.80. Users should upgrade to version 0.10.80 or later to remediate this vulnerability. No other mitigation actions are specified.
Description
A vulnerability in rust-openssl versions from 0.10.50 up to but not including 0.10.80 causes incorrect sizing of output buffers in the CipherCtxRef::cipher_update_inplace function when used with AES key-wrap-with-padding ciphers. This leads to OpenSSL writing up to 7 bytes beyond the end of the caller's buffer or Vec for non-multiple-of-8 inputs, resulting in attacker-controllable heap corruption. The issue is fixed in version 0.10.80.