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CVE

CVE-2026-1229

The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs.
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CVE

CVE-2026-1229

The CombinedMult function in the CIRCL ecc/p384 package (secp384r1 curve) produces an incorrect value for specific inputs.

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 .

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
2.9
-
4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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:N/AU:Y/R:X/V:X/RE:X/U:Amber
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/cloudflare/circl

Severity

9.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.8
EPSS Probability
0.00022%
EPSS Percentile
0.05819%
Introduced Version
0
Fix Available
24ae53c5d6f7fe18203adc125ba3ed76a38703e1,0.4.12-r43,0.13.1-r3,0.13.1-r5,3.3.3270.0-r6,3.3.3270.0-r7,1.1.11-r1,2.14.21-r9,3.0.23-r3,3.1.12-r4,3.2.7-r1,3.3.2-r1,2.14.21-r8,3.0.23-r4,3.1.12-r3,1.9.10-r4,1.9.10-r3,1.8.4-r2,3.6.19-r2,3.7.10-r3,4.0.1-r2,3.7.10-r2,1.1.1-r1,0.40.0-r2,0.40.0-r4,0.16.6-r8,0.16.6-r7,0.27.1-r4,0.27.1-r2,0.51.0-r4,0.51.0-r2,2.4.1-r1,0.2.212-r0,0.2.213-r0,0.19.2-r1,8.17.10-r8,8.19.12-r1,9.0.8-r8,9.1.10-r3,9.2.5-r4,9.3.1-r1,8.17.10-r11,8.19.12-r0,9.2.6-r0,9.3.1-r3,1.10.10-r3,1.11.6-r1,1.12.3-r1,1.7.9-r12,1.8.12-r11,1.9.11-r8,1.7.9-r6,1.8.12-r8,1.9.11-r6,11.6.14-r0,12.1.10-r0,12.2.8-r0,12.3.6-r0,12.4.2-r0,1.20.5-r3,2.0.7-r3,2.1.4-r4,2.2.0-r1,2.1.4-r3,2.2.0-r2,2.4.0-r1,2.14.0-r2,2.14.0-r4,0.19.11-r2,0.290.1-r1,7.76.1-r0,7.76.1-r1,29.2.1-r2,0.31.1-r3,0.31.1-r4,29.1.3-r5,2.0.1-r1,1.6.3-r8,2.5.1-r21,2.6.4-r13,2.7.5-r7,2.8.1-r1,2.5.1-r19,1.5.0-r1,1.5.1-r2,1.1.0-r1,1.8.0-r2,1.8.0-r1,18.7.5-r1,18.8.5-r1,18.9.1-r1,1.25.4-r4,2.9.1-r1,18.1.6-r8,18.3.6-r4,18.4.6-r2,18.5.5-r1,18.6.6-r3,18.7.6-r1,18.8.6-r1,18.9.2-r1,18.3.6-r5,18.4.6-r4,18.5.5-r2,18.7.6-r2,18.8.6-r2,18.9.2-r0,18.6.6-r6,18.7.2-r4,18.8.0-r2,18.9.0-r1,18.7.2-r5,18.8.0-r3,3.3.0-r8,0.14.0-r5,4.3.3-r1,5.0.0-r5,2.14.1-r1,0.9.8-r5,11.6.12-r1,12.1.8-r1,12.3.4-r1,1.13.2-r1,11.6.12-r2,12.1.8-r2,12.3.4-r2,0.109.0-r1,0.52.1-r1,1.0.1-r7,4.1.1-r1,3.15.0-r2,4.1.1-r2,0.11.1-r1,25.4.0-r6,25.4.0-r7,1.0.3-r1,0.50.18-r4,0.50.18-r5,1.129.4-r1,4.4.0-r7,4.0.2-r1,1.10.7-r1,1.14.5-r9,1.15.3-r4,1.16.3-r6,1.17.1-r1,1.15.3-r3,1.16.3-r5,1.1-r36,1.1-r37,0.5.3-r3,0.5.3-r8,0.59.0-r1,2.13.2-r4,0.43.3-r1,2.45.0-r3,3.7.0-r6,1.5.7-r1,2.5.1-r1,1.10.9-r1,1.11.5-r1,1.9.4-r7,1.10.9-r2,1.11.5-r2,1.9.4-r8,2.3.3-r1,1.15.0-r2,1.15.0-r3,0.14.0-r2,3.224.0-r0,2.5.0-r1,3.101.2-r1,1.21.2-r1,1.29.1-r1,0.19.11-r6,0.14.3-r1,1.4.0-r12,1.4.0-r15,1.73.1-r1,0.1.6-r3,5.4.0-r7,2.17.2-r1,1.1303.0-r1,3.12.1-r1,0.19.0-r40,0.19.0-r26,1.42.1-r1,0.59.6-r15,0.62.9-r15,0.65.7-r14,0.68.1-r12,0.65.7-r15,0.68.1-r14,1.13.5-r5,1.14.6-r2,1.13.5-r7,3.8.0-r1,4.62.0-r0,1.110.0-r1,3.31.2-r1,0.99.3-r2,0.99.4-r1,1.28.14-r14,0.69.1-r2,0.30.0-r2,3.93.4-r1,1.21.3-r2,1.21.2-r4,0.32.0-r1,3.0.8-r2,0.10.2-r8,0.39.2-r1,0.10.8-r24,0.73.0-r1,2.1.14-r4

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