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VulnerabilityCVE-2026-55076Published 2026-07-07

CVE-2026-55076 — coder

high

As of 2026-07-07, CVE-2026-55076 is a HIGH-severity vulnerability in coder, CVSS v3.1 7.4. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-55076 as of 2026-07-07; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

CVSS v3.1
7.4/10High
EPSS
—No EPSS score yet
CISA KEV
NoNot in the KEV catalog
Tracked threats
0None linked yet
Priority
3.7/10Threadlinqs triage score
Published
CVSS v3.1 7.4 (HIGH) · Priority 3.7/10 · Published 2026-07-07

Last updated:

What is CVE-2026-55076?

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, Coder's OIDC callback checked `email_verified` with a direct Go `bool` type assertion. When an IdP returned the claim as a non-boolean (for example the string `"false"`) or omitted it, the assertion failed open and the email was treated as verified. Combined with an unconditional email-based account fallback, this enabled account takeover. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 coerces `email_verified` across bool, string and numeric types (fail-closed) and blocks the email fallback when the matched user already has a different linked IdP subject. As a workaround, ensure the IdP returns `email_verified` as a native JSON boolean. The email-fallback linking issue has no configuration workaround; upgrading is required.

The record classifies CVE-2026-55076 under weakness classes CWE-287, CWE-704. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 90 days ago.

Severity and exploitation probability

CVSS v3.1 base score
7.4 — HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
3.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-07-07

Is CVE-2026-55076 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

Affected products and versions

  • coder: coder

Affected software packages:

  • go:github.com/coder/coder/v2 — patched in 2.34.2
  • go:github.com/coder/coder/v2 — patched in 2.33.8
  • go:github.com/coder/coder/v2 — patched in 2.32.7
  • go:github.com/coder/coder/v2 — patched in 2.29.17

How to fix CVE-2026-55076

Fixed versions are recorded for 4 packages: go:github.com/coder/coder/v2 2.34.2, go:github.com/coder/coder/v2 2.33.8, go:github.com/coder/coder/v2 2.32.7, go:github.com/coder/coder/v2 2.29.17. No vendor patch reference has been recorded for CVE-2026-55076 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-55076

No threat campaign in the Threadlinqs corpus currently references CVE-2026-55076, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

Sources

Enriched from CVE.org, NVD, GitHub Security Advisories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Vendor advisory and patch

Other references

Showing 6 of 7 recorded references.