The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty…
Priority LOW 20CWE-126Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- Partial Red Hat: 7 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.
Summary
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00226 13th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial openssl (sfackler): 0.10.55openssl (crates.io): 0.10.55Red Hat: 7 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| sfackler | openssl | before 0.10.55 | 0.10.55 | Patch available | CNA |
| — | openssl (crates.io) | 0.10.0 to before 0.10.55 | 0.10.55 | Patch available | GHSA-xcf7-rvmh-g6q4 |
- openssl Vendorsfackler Affected before 0.10.55 Fixed in 0.10.55 Patch available CNA
- openssl (crates.io) Vendor— Affected 0.10.0 to before 0.10.55 Fixed in 0.10.55 Patch available GHSA-xcf7-rvmh-g6q4
Remediation
- Fix · CNA openssl (sfackler) Fixed in 0.10.55
- Fix · GHSA-xcf7-rvmh-g6q4 openssl (crates.io) Fixed in 0.10.55 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Logging Subsystem for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| OpenShift Service Mesh 3 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
Not affected: 15 products
- Confidential Compute Attestation
- Red Hat Directory Server 11
- Red Hat Directory Server 12
- Red Hat Discovery 2
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat JBoss Core Services
- Red Hat Offline Knowledge Portal
- Red Hat OpenShift Container Platform 4
- Red Hat Satellite 6
- Red Hat Trusted Artifact Signer
- Red Hat Trusted Profile Analyzer
Timeline
- 2026-10-02 Threatist record created from CVE-2023-53159
- 2026-10-03 Alias added: GHSA-xcf7-rvmh-g6q4
References
Advisory 2
More sfackler Openssl vulnerabilities
- TI-2026-33521 rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers CVSS 4.0MEDIUM 5.1
Sources
- CVE-2023-53159 · CVE Program
- CVE-2023-53159 · NVD
- FIRST EPSS
- GHSA-xcf7-rvmh-g6q4 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-53159 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences