CVE-2020-13822
Signature Malleabillity in elliptic
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
CVE-2020-13822- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-190
- Updated
- 2026-11-02
CVE List No score
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
CVE-2020-13822- Updated
- 2026-11-02
EUVDEUVD-2020-0571 No score
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
EUVD-2020-0571- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vh7m-p724-62c2
Signature Malleabillity in elliptic
The Elliptic package before version 6.5.3 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
GHSA-vh7m-p724-62c2- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-190
- Updated
- 2026-11-02
OSV
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
CVE-2020-13822- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-13822
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
DEBIAN-CVE-2020-13822- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L - Updated
- 2026-11-02
Show 5 moreShow less
OSVGHSA-vh7m-p724-62c2
Signature Malleabillity in elliptic
The Elliptic package before version 6.5.3 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
GHSA-vh7m-p724-62c2- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L - Weakness
- CWE-190
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-13822
The Elliptic package 6.5.2 for Node.js allows ECDSA signature malleability via variations in encoding, leading '\0' bytes, or integer overflows. This could conceivably have a security-relevant impact if an application relied on a single canonical signature.
- Record
UBUNTU-CVE-2020-13822- CVSS 3.1
- 7.7 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L - 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-2026-1792163848 No score
TuxCare security update for elliptic (1 CVE)
TuxCare rebuilt elliptic to address 1 CVE. Fixed in 6.5.1-tuxcare.1.
- Record
CLSA-2026-1792163848- Updated
- 2026-11-02
OSVROOT-APP-NPM-CVE-2020-13822 No score
CVE-2020-13822 in elliptic - Patched by Root
Root has patched CVE-2020-13822 in the elliptic package for Root:npm. Multiple fixed versions available.
- Record
ROOT-APP-NPM-CVE-2020-13822- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ellipticnpm |
before 6.5.3 | 6.5.3 |
ellipticTuxCare: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 |
ellipticTuxCare:npm |
6.5.1-tuxcare.0 up to 6.5.1-tuxcare.1, plus listed versions 6.5.1 |
6.5.1-tuxcare.1 |
node-ellipticDebian:12 |
before 6.5.3~dfsg-1 | 6.5.3~dfsg-1 |
node-ellipticDebian:13 |
before 6.5.3~dfsg-1 | 6.5.3~dfsg-1 |
node-ellipticDebian:14 |
before 6.5.3~dfsg-1 | 6.5.3~dfsg-1 |
ellipticRoot:npm |
before 6.5.2-aikido.2 | 6.5.2-aikido.2 |
@rootio/ellipticRoot:npm |
before 6.5.2-root.io.2 | 6.5.2-root.io.2 |
node-ellipticUbuntu:18.04:LTS |
All versions, plus listed versions 6.4.0+dfsg-1 |
None known |
node-ellipticUbuntu:20.04:LTS |
All versions, plus listed versions 6.5.1~dfsg-16.5.1~dfsg-2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| affected, aliases, cwes, facts, references | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-13822 is a high vulnerability (CVSS 7.7) in Indutny Elliptic, published June 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.71%, the 86th percentile. Fixed in elliptic 6.5.3.