Vulnerability-Lookup

GHSA-G3XR-5F55-CF5G

Vulnerability from github – Published: 2026-03-19 21:30 – Updated: 2026-03-19 21:30

Details

Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required key_share extension, resulting in derivation of predictable traffic secrets from (EC)DHE shared secret. This issue does not affect the client's authentication of the server during TLS handshakes.

Severity ?

1.2 (Low)


                  
                    CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:Y/R:A/V:D/U:Clear

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  "aliases": [
    "CVE-2026-3230"
  ],
  "database_specific": {
    "cwe_ids": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-19T21:17:12Z",
    "severity": "LOW"
  },
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  "id": "GHSA-g3xr-5f55-cf5g",
  "modified": "2026-03-19T21:30:25Z",
  "published": "2026-03-19T21:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3230"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/pull/9754"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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:Y/R:A/V:D/RE:X/U:Clear",
      "type": "CVSS_V4"
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}

CVE-2026-3230 (GCVE-0-2026-3230)

Vulnerability from cvelistv5 – Published: 2026-03-19 20:59 – Updated: 2026-03-20 17:09

Title

Improper key_share validation in TLS 1.3 HelloRetryRequest

Summary

Severity ?

1.2 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:Y/R:A/V:D/U:Clear

CWE

CWE-20 - Improper Input Validation Improper Input Validation

Assigner

wolfSSL

References

URL

Tags

https://github.com/wolfSSL/wolfssl/pull/9754

Impacted products

	Vendor	Product	Version
	wolfSSL	wolfSSL	Affected: 0 , < 5.9.0 (semver)

Credits

Jaehun Lee, Pohang University of Science and Technology (POSTECH) Kyungmin Bae, Pohang University of Science and Technology (POSTECH)

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                "timestamp": "2026-03-20T17:08:54.344097Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-G3XR-5F55-CF5G

CVE-2026-3230 (GCVE-0-2026-3230)

Tags

Sightings

Nomenclature