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CVE-2026-49265 OAuthLib: Timing Attack Vulnerability in PKCE code_verifier Comparison

🗓️ 13 Oct 2026 15:47:11Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 14 Views

Timing attack in OAuthLib PKCE code_verifier comparison allows recovery of the code_verifier.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cgr
Chainguard
CVE-2026-49265 vulnerabilities
30 Sep 202620:54
–cgr
circl
Circl
CVE-2026-49265
28 Sep 202609:17
–circl
cve
CVE
CVE-2026-49265
13 Oct 202615:47
–cve
euvd
EUVD
EUVD-2026-98833
13 Oct 202615:47
–euvd
github
Github Security Blog
Oauthlib: Timing Attack Vulnerability in PKCE code_verifier Comparison (CWE-208)
29 Sep 202617:56
–github
mend
Mend
CVE-2026-49265
29 Sep 202619:44
–mend
nvd
NVD
CVE-2026-49265
13 Oct 202616:17
–nvd
osv
OSV
CGA-2FX9-2VH4-XQVF
30 Sep 202612:28
–osv
osv
OSV
CGA-2M49-498R-RMQG
30 Sep 202613:13
–osv
osv
OSV
CGA-2R82-RCH9-FJQ2
30 Sep 202613:39
–osv
Rows per page
[
  {
    "vendor": "oauthlib",
    "product": "oauthlib",
    "versions": [
      {
        "version": ">= 3.0.0, < 4.0.0",
        "status": "affected"
      }
    ]
  }
]

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