Vulnerability-Lookup

GHSA-WM74-PVWW-Q7H2

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

Details

In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.

Severity ?

2.1 (Low)


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

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  "affected": [],
  "aliases": [
    "CVE-2026-3580"
  ],
  "database_specific": {
    "cwe_ids": [
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-19T20:16:14Z",
    "severity": "LOW"
  },
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  "id": "GHSA-wm74-pvww-q7h2",
  "modified": "2026-03-19T21:30:23Z",
  "published": "2026-03-19T21:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3580"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/pull/9855"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
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      "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/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:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-3580 (GCVE-0-2026-3580)

Vulnerability from cvelistv5 – Published: 2026-03-19 19:46 – Updated: 2026-03-19 20:25

Title

Compiler-induced timing leak in sp_256_get_entry_256_9 on RISC-V

Summary

Severity ?

2.1 (Low)


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

CWE

CWE-203 - Observable Discrepancy

Assigner

wolfSSL

References

URL

Tags

https://github.com/wolfSSL/wolfssl/pull/9855

Impacted products

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

Credits

Wind Wong

Show details on NVD website

JSON

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                "timestamp": "2026-03-19T20:25:11.122057Z",
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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-WM74-PVWW-Q7H2

CVE-2026-3580 (GCVE-0-2026-3580)

Tags

Sightings

Nomenclature