Is CVE-2026-45739 in the CISA KEV catalog?

No. CVE-2026-45739 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-45739?

CVE-2026-45739 has a CVSS v3 base score of 3.1 (LOW).

What is the EPSS score for CVE-2026-45739?

CVE-2026-45739 has an EPSS score of 0.22% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-45739?

Upgrade strawberry graphql to 0.315.4 or later.

CVE & CISA-KEV Catalog

CVE-2026-45739

LOW

3.1

CVSS v3

NVD

Description

Strawberry GraphQL is a library for creating GraphQL APIs. In versions 0.288.4 through 0.315.3, Strawberry's bundled GraphiQL template wrote values from the GraphiQL headers editor into the browser URL query string. If a user entered a sensitive header, such as `Authorization: Bearer <token>`, the value could become visible in browser history, copied links, and server/proxy/CDN access logs after a page reload or shared request. Version 0.315.4 patches the issue.

CWE-200Information Exposure CWE-201

How to fix

Remediation Available

strawberry graphqlNVD

Affected:>= 0.288.4, < 0.315.4Fixed in:0.315.4CVE-2026-45739derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploit Intelligence

0.22%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Patch2

Vendor Advisory1

github.com

Issue Tracking1

github.com

Release Notes1

github.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-05.