VulnSocial

CVE-2026-1229Disclosure(cloudflare / circl)

LOWCVSS 9.8 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch cloudflare circl systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition formulas. ECDH and ECDSA signing relying on this curve are not affected. The bug was fixed in v1.6.3 https://github.com/cloudflare/circl/releases/tag/v1.6.3 .

cloudflare CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-682

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • circl

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
cloudflare
Products
circl

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-02-24: 2Patch / Workaround · 2026-02-24: 1Technical Details · 2026-02-24: 202-24
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets3 URLs
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-1229 Computational Error in CIRCL ecc/p384 CombinedMult Functio... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-1229 Don't wait vulnerability scanning results: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=2

    Post summary

    The post announces CVE-2026-1229, a computational error in the CIRCL ecc/p384 CombinedMult function, and links to a vulnerability detail page, but provides no PoC, exploit, patch, or active exploitation information.

    0001151
    4.0K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-1229 The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs. The issue is fixed by using complete addition… https://www.cve.org/CVERecord?id=CVE-2026-1229

    Post summary

    CVE-2026-1229 causes incorrect values in the CombinedMult function of the CIRCL ecc/p384 package for certain inputs; the issue is resolved by using complete addition.

    00000113
    56.5K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appcloudflarecircl-go-

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