CVE-2024-42459

Elliptic's EDDSA missing signature length check

5.3 MediumFix available

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.30%Up 0.3 points since Aug 6, 2024

What each source reports

CVE List Score used 5.3

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: CVE-2024-42459
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-347
Updated: 2026-11-02

EUVDEUVD-2024-2570 5.3

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: EUVD-2024-2570
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-f7q4-pwc6-w24p 2.7

Elliptic's EDDSA missing signature length check

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: GHSA-f7q4-pwc6-w24p
CVSS 4.0: 2.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-347
Updated: 2026-11-02

NVD 5.3

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: CVE-2024-42459
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-347
Updated: 2026-11-02

OSV 5.3

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: CVE-2024-42459
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2024-42459 5.3

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: DEBIAN-CVE-2024-42459
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

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OSVGHSA-f7q4-pwc6-w24p 2.7

Elliptic's EDDSA missing signature length check

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: GHSA-f7q4-pwc6-w24p
CVSS 4.0: 2.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-347
Updated: 2026-11-02

OSVUBUNTU-CVE-2024-42459 5.3

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: UBUNTU-CVE-2024-42459
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVAZL-47421 No score

CVE-2024-42459 affecting package reaper for versions less than 3.1.1-11

In the Elliptic package 6.5.6 for Node.js, EDDSA signature malleability occurs because there is a missing signature length check, and thus zero-valued bytes can be removed or appended.

Record: AZL-47421
Updated: 2026-11-02

OSVCLSA-2026-1781139210 No score

TuxCare security update for elliptic (9 CVEs)

TuxCare rebuilt elliptic to address 9 CVEs. Fixed in 6.4.1-tuxcare.1.

Record: CLSA-2026-1781139210
Updated: 2026-11-02

OSVCLSA-2026-1781139211 No score

TuxCare security update for elliptic (7 CVEs)

TuxCare rebuilt elliptic to address 7 CVEs. Fixed in 6.5.4-tuxcare.1.

Record: CLSA-2026-1781139211
Updated: 2026-11-02

OSVCLSA-2026-1781139212 No score

TuxCare security update for elliptic (7 CVEs)

TuxCare rebuilt elliptic to address 7 CVEs. Fixed in 6.5.5-tuxcare.1.

Record: CLSA-2026-1781139212
Updated: 2026-11-02

OSVCLSA-2026-1793101918 No score

TuxCare security update for elliptic (6 CVEs)

TuxCare rebuilt elliptic to address 6 CVEs. Fixed in 6.5.1-tuxcare.2.

Record: CLSA-2026-1793101918
Updated: 2026-11-02

OSVCLSA-2026-1793102023 No score

TuxCare security update for elliptic (5 CVEs)

TuxCare rebuilt elliptic to address 5 CVEs. Fixed in 6.5.3-tuxcare.2.

Record: CLSA-2026-1793102023
Updated: 2026-11-02

OSVopenSUSE-SU-2025:14663-1 No score

velociraptor-0.7.0.4.git142.862ef23-1.1 on GA media

These are all security issues fixed in the velociraptor-0.7.0.4.git142.862ef23-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2025:14663-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`elliptic` npm	4.0.0 to 6.5.6	6.5.7
`reaper` Azure Linux:2	before 3.1.1-11	3.1.1-11
`elliptic` TuxCare:npm From an advisory covering 8 CVEs	6.4.1-tuxcare.0 up to 6.4.1-tuxcare.1, plus listed versions 6.4.1	6.4.1-tuxcare.1
`elliptic` TuxCare:npm From an advisory covering 6 CVEs	6.5.4-tuxcare.0 up to 6.5.4-tuxcare.1, plus listed versions 6.5.4	6.5.4-tuxcare.1
`elliptic` TuxCare:npm From an advisory covering 6 CVEs	6.5.5-tuxcare.0 up to 6.5.5-tuxcare.1, plus listed versions 6.5.5	6.5.5-tuxcare.1
`elliptic` TuxCare:npm From an advisory covering 6 CVEs	6.5.1-tuxcare.0 up to 6.5.1-tuxcare.2, plus listed versions 6.5.16.5.1-tuxcare.1	6.5.1-tuxcare.2
`elliptic` TuxCare:npm From an advisory covering 5 CVEs	6.5.3-tuxcare.0 up to 6.5.3-tuxcare.2, plus listed versions 6.5.36.5.3-tuxcare.1	6.5.3-tuxcare.2
`node-elliptic` Debian:12	All versions, plus listed versions 6.5.4~dfsg-26.5.7+dfsg-16.6.1+dfsg+~6.4.18-16.6.1+dfsg+~6.4.18-26.6.1+dfsg-1	None known
`node-elliptic` Debian:13	before 6.5.7+dfsg-1	6.5.7+dfsg-1
`node-elliptic` Debian:14	before 6.5.7+dfsg-1	6.5.7+dfsg-1

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Affected packages
Package	Affected	Fixed
`elliptic` npm	4.0.0 up to 6.5.7	6.5.7
`node-elliptic` Ubuntu:18.04:LTS	All versions, plus listed versions 6.4.0+dfsg-1	None known
`node-elliptic` Ubuntu:20.04:LTS	All versions, plus listed versions 6.5.1~dfsg-16.5.1~dfsg-2	None known
`node-elliptic` Ubuntu:22.04:LTS	All versions, plus listed versions 6.5.4~dfsg-1	None known
`node-elliptic` Ubuntu:24.04:LTS	All versions, plus listed versions 6.5.4~dfsg-2	None known
`node-elliptic` Ubuntu:25.10	All versions, plus listed versions 6.6.1+dfsg-1	None known
`node-elliptic` Ubuntu:26.10	All versions, plus listed versions 6.6.1+dfsg+~6.4.18-16.6.1+dfsg+~6.4.18-2	None known
`node-elliptic` Ubuntu:26.04:LTS	All versions, plus listed versions 6.6.1+dfsg-16.6.1+dfsg+~6.4.18-1	None known
`velociraptor` openSUSE:Tumbleweed From an advisory covering 27 CVEs	before 0.7.0.4.git142.862ef23-1.1	0.7.0.4.git142.862ef23-1.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected
Nov 4, 2026	affected, aliases, cwes, facts, references
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-42459 is a medium vulnerability (CVSS 5.3) in Elliptic Project Elliptic, published August 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 23rd percentile. Fixed in elliptic 6.5.7.

References

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