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CVE-2026-84308 phpseclib — non-constant-time X25519 scalar multiplication permits full private-key recovery

🗓️ 01 Sep 2026 19:28:09Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

Non-constant-time X25519 in phpseclib before 3.0.57/4.0.1 permits private key recovery.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-84308
8 Sep 202622:35
circl
cve
CVE
CVE-2026-84308
1 Sep 202619:28
cve
debiancve
Debian CVE
CVE-2026-84308
1 Sep 202619:28
debiancve
euvd
EUVD
EUVD-2026-69576
8 Sep 202621:24
euvd
github
Github Security Blog
phpseclib — non-constant-time X25519 scalar multiplication permits full private-key recovery
8 Sep 202621:24
github
nvd
NVD
CVE-2026-84308
1 Sep 202620:17
nvd
osv
OSV
DEBIAN-CVE-2026-84308
1 Sep 202620:17
osv
osv
OSV
GHSA-Q97C-8QH3-FPC6 phpseclib — non-constant-time X25519 scalar multiplication permits full private-key recovery
8 Sep 202621:24
osv
osv
OSV
UBUNTU-CVE-2026-84308
1 Sep 202620:17
osv
ptsecurity
Positive Technologies
PT-2026-84455
1 Sep 202600:00
ptsecurity
Rows per page
[
  {
    "vendor": "phpseclib",
    "product": "phpseclib",
    "versions": [
      {
        "version": "< 3.0.57",
        "status": "affected"
      },
      {
        "version": ">= 4.0.0, < 4.0.1",
        "status": "affected"
      }
    ]
  }
]

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