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Update module github.com/cloudflare/circl to v1.6.3 [SECURITY] - #212

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This PR contains the following updates:

Package Change Age Confidence
github.com/cloudflare/circl v1.3.3 → v1.6.3 age confidence

CIRCL's Kyber: timing side-channel (kyberslash2)

GHSA-9763-4f94-gfch

More information

Details

Impact

On some platforms, when an attacker can time decapsulation of Kyber on forged cipher texts, they could possibly learn (parts of) the secret key.

Does not apply to ephemeral usage, such as when used in the regular way in TLS.

Patches

Patched in 1.3.7.

References

Severity

High

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


CIRCL-Fourq: Missing and wrong validation can lead to incorrect results

CVE-2025-8556 / GHSA-2x5j-vhc8-9cwm

More information

Details

Impact

The CIRCL implementation of FourQ fails to validate user-supplied low-order points during Diffie-Hellman key exchange, potentially allowing attackers to force the identity point and compromise session security.

Moreover, there is an incorrect point validation in ScalarMult can lead to incorrect results in the isEqual function and if a point is on the curve.

Patches

Version 1.6.1 (https://github.com/cloudflare/circl/tree/v1.6.1) mitigates the identified issues.

We acknowledge Alon Livne (Botanica Software Labs) for the reported findings.

Severity

  • CVSS Score: 3.7 / 10 (Low)
  • Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


CIRCL has an incorrect calculation in secp384r1 CombinedMult

CVE-2026-1229 / GHSA-q9hv-hpm4-hj6x

More information

Details

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.

Severity

  • CVSS Score: 2.9 / 10 (Low)
  • Vector String: 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/S:N/AU:Y/U:Amber

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).


Release Notes

cloudflare/circl (github.com/cloudflare/circl)

v1.6.3: CIRCL v1.6.3

Compare Source

CIRCL v1.6.3

Fix a bug on ecc/p384 scalar multiplication.

What's Changed

Full Changelog: cloudflare/circl@v1.6.2...v1.6.3

v1.6.2: CIRCL v1.6.2

Compare Source

CIRCL v1.6.2

  • New SLH-DSA, improvements in ML-DSA for arm64.
  • Tested compilation on WASM.

What's Changed

New Contributors

Full Changelog: cloudflare/circl@v1.6.1...v1.6.2

v1.6.1: CIRCL v1.6.1

Compare Source

CIRCL v1.6.1

  • Fixes some point checks on the FourQ curve.
  • Hybrid KEM fails on low-order points.
What's Changed

Full Changelog: cloudflare/circl@v1.6.0...v1.6.1

v1.6.0: CIRCL v1.6.0

Compare Source

CIRCL v1.6.0

New!
What's Changed
New Contributors

Full Changelog: cloudflare/circl@v1.5.0...v1.6.0

v1.5.0: CIRCL v1.5.0

Compare Source

CIRCL v1.5.0

New: ML-DSA, Module-Lattice-based Digital Signature Algorithm.

What's Changed
New Contributors

Full Changelog: cloudflare/circl@v1.4.0...v1.5.0

v1.4.0: CIRCL v1.4.0

Compare Source

CIRCL v1.4.0

Changes

New: ML-KEM compatible with FIPS-203.

Commit History

Full Changelog: cloudflare/circl@v1.3.9...v1.4.0

v1.3.9: CIRCL v1.3.9

Compare Source

CIRCL v1.3.9

Changes:
  • Fix bug on BLS12381 decoding elements.
Commit History

Full Changelog: cloudflare/circl@v1.3.8...v1.3.9

v1.3.8: CIRCL v1.3.8

Compare Source

CIRCL v1.3.8

New

  • BLS Signatures on top of BLS12-381.
  • Adopt faster squaring in pairings.
  • BlindRSA compliant with RFC9474.
  • (Verifiable) Secret Sharing compatible with the Group interface (elliptic curves).

Notice

What's Changed
New Contributors

Full Changelog: cloudflare/circl@v1.3.7...v1.3.8

v1.3.7: CIRCL v1.3.7

Compare Source

CIRCL v1.3.7

What's Changed
New Contributors

Full Changelog: cloudflare/circl@v1.3.6...v1.3.7

v1.3.6: CIRCL v1.3.6

Compare Source

CIRCL v1.3.6

What's Changed
New Contributors

Full Changelog: cloudflare/circl@v1.3.3...v1.3.6

v1.3.5

Compare Source

v1.3.4

Compare Source


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@renovate renovate Bot added the renovate Automated action from Renovate label Oct 20, 2026
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renovate Bot commented Oct 20, 2026

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ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

  • 3 additional dependencies were updated
  • The go directive was updated for compatibility reasons

Details:

Package Change
go 1.20 -> 1.22.0
golang.org/x/crypto v0.7.0 -> v0.30.0
golang.org/x/net v0.10.0 -> v0.21.0
golang.org/x/sys v0.8.0 -> v0.28.0

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