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npm package

elliptic 0.6.1 vulnerabilities, and what to upgrade to

elliptic 0.6.1 has 6 known vulnerabilities (2 rated high or critical); 6.6.1 fixes 5 of them, and 1 has no fixed version yet. 6.6.1 has 1 known vulnerability of its own, and so does every newer release we checked.

npm (opens in a new tab) describes it as “EC cryptography”

Known vulnerabilities
6
2 rated high or critical
Released
Apr 27, 2014
Latest is 6.6.1
Downloads last week
55
Under 1% of elliptic downloads
Licence
MIT
Pulls in
2 packages
Resolved by deps.dev

What to upgrade to

Every newer release we checked still has known vulnerabilities. The fewer, the better.

  • 6.6.1

    Fixes 5 of the 6 known vulnerabilities and the latest release. Released Nov 13, 2024.

    1 known vulnerability, worst rated warning

Hand the fix to your coding agent

One task with the upgrade, the file to change and why. Paste it into Claude Code, Cursor or Codex.

Findings

Every advisory for elliptic 0.6.1

Known exploited first (CISA KEV), then by how likely they are to be exploited (FIRST EPSS), then by severity. Each id links to its OSV.dev record.

  1. CriticalGHSA-vjh7-7g9h-fjfh on OSV.dev (opens in a new tab)

    Elliptic's private key extraction in ECDSA upon signing a malformed input (e.g. a string)

    Fixed in 6.6.1. Published Feb 12, 2025.

  2. CriticalCVE-2020-13822 on OSV.dev (opens in a new tab)GHSA-vh7m-p724-62c2

    Signature Malleabillity in elliptic

    Fixed in 6.5.3. Published Jul 29, 2020.

  3. WarningCVE-2020-28498 on OSV.dev (opens in a new tab)GHSA-r9p9-mrjm-926w

    Elliptic Uses a Broken or Risky Cryptographic Algorithm

    Fixed in 6.5.4. Published Mar 8, 2021.

  4. LowCVE-2025-14505 on OSV.dev (opens in a new tab)GHSA-848j-6mx2-7j84

    Elliptic Uses a Cryptographic Primitive with a Risky Implementation

    No fixed version listed yet. Published Jan 8, 2026.

  5. LowCVE-2024-48948 on OSV.dev (opens in a new tab)GHSA-fc9h-whq2-v747

    Valid ECDSA signatures erroneously rejected in Elliptic

    Fixed in 6.6.0. Published Oct 15, 2024.

  6. LowCVE-2024-48949 on OSV.dev (opens in a new tab)GHSA-434g-2637-qmqr

    Elliptic's verify function omits uniqueness validation

    Fixed in 6.5.6. Published Oct 10, 2024.

Who is still on a vulnerable elliptic

100% of last week’s 8.2M elliptic downloads went to versions with known vulnerabilities.

From npm’s per-version download counts for the last 7 days, each version checked against OSV.dev. The versions checked cover over 99% of downloads.

Is elliptic the only one?

Paste a public GitHub repo or drop your package.json and see every vulnerable, end-of-life or deprecated dependency, with one fix task. Free, no sign-up.

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How this page is checked

StackPrism asks OSV.dev which advisories affect exactly elliptic 0.6.1, merges duplicates filed under several ids, and ranks them with CISA’s Known Exploited Vulnerabilities list and FIRST EPSS. Release dates and deprecation come from deps.dev and npm. No AI writes this page: every sentence comes from that data, refreshed every few hours.

Last checked against npm, OSV.dev, deps.dev, CISA KEV and FIRST EPSS (didn’t answer). Findings from that source may be missing; this page refreshes soon.