# SD JWT JS: Tampered disclosures silently dropped instead of rejected

Advisory record · `GHSA-f9j6-8p6x-r9j6`

- **Identifiers:** `GHSA-f9j6-8p6x-r9j6` · `CVE-2026-62374`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **Weakness (CWE):** [CWE-176](https://cwe.mitre.org/data/definitions/176.html) · [CWE-754](https://cwe.mitre.org/data/definitions/754.html)
- **Tags:** [CWE-176](https://agentprime.io/advisories/tag/cwe-176.md) · [CWE-754](https://agentprime.io/advisories/tag/cwe-754.md)
- **Published:** 2 Nov 2026
- **Updated:** 2 Nov 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 2 Nov 2026, 17:54 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `@sd-jwt/decode` (npm): affected `<=0.19.0`; no fixed version yet
- `@sd-jwt/core` (npm): affected `<0.20.0`; fixed in `0.20.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 7.1 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0023, the 13th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 29 Oct 2026, 16:27 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-62374)
- 29 Oct 2026, 17:18 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-62374)
- 2 Nov 2026, 17:54 UTC: [Confirmed by GitHub Advisory Database](https://github.com/advisories/GHSA-f9j6-8p6x-r9j6)
- 2 Nov 2026, 18:00 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-f9j6-8p6x-r9j6)

## Sources

- [GitHub Advisory Database: GHSA-f9j6-8p6x-r9j6](https://github.com/advisories/GHSA-f9j6-8p6x-r9j6)
- [OSV: GHSA-f9j6-8p6x-r9j6](https://osv.dev/vulnerability/GHSA-f9j6-8p6x-r9j6)
- <https://github.com/openwallet-foundation/sd-jwt-js/security/advisories/GHSA-f9j6-8p6x-r9j6>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-62374>
- <https://github.com/openwallet-foundation/sd-jwt-js/pull/380>
- <https://github.com/openwallet-foundation/sd-jwt-js/commit/3d8a72a0a279d67439db038c9c2b52621568b866>
- <https://github.com/openwallet-foundation/sd-jwt-js>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-f9j6-8p6x-r9j6>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-f9j6-8p6x-r9j6/>. Everything for agents: <https://agentprime.io/llms.txt>.