CVE-2026-45739

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 88% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 , 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.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
12.2%
KEV
Not listed

Published

May 19, 2026

Last Modified

June 5, 2026

Advisory Details (5)

Auto-updated Jun 16, 2026
Patch available. Sources: github_pr, github_release, github, github_commit.
github Patch Available

Default GraphiQL may expose HTTP headers in URLs · Advisory · strawberry-graphql/strawberry · GitHub

https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-x97m-qp5c-w9xj
github_release Patch Available

0.315.4

Patch available: strawberry-graphql/strawberry 0.315.4

https://github.com/strawberry-graphql/strawberry/releases/tag/0.315.4
github_pr Patch Available

added url sharing for graphiql

Patch available: strawberry-graphql/strawberry 0.308.1 (PR #2842 merged 2026-01-12)

https://github.com/strawberry-graphql/strawberry/pull/2842
generic

Bundled Graphiql Writes Headers To URL · Issue #4398 · strawberry-graphql/strawberry · GitHub

https://github.com/strawberry-graphql/strawberry/issues/4398
github_commit Patch Available

commit 9315ef80a621 (strawberry-graphql/strawberry)

Patch available: strawberry-graphql/strawberry 0.308.1 (contains commit 9315ef80a621)

https://github.com/strawberry-graphql/strawberry/commit/9315ef80a621ae50ca0bc5c82f560ca4ee7e47a9

Vendor Advisories for CVE-2026-45739(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
strawberry-graphql0.288.4 ... 0.315.3 (64 versions)0.315.4—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 45× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 08:27 UTCEPSS rescore
  2. 2026-07-09 19:10 UTCEPSS rescore
  3. 2026-07-08 15:16 UTCEPSS rescore
  4. 2026-07-07 13:46 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-01 15:07 UTCEPSS rescore
  10. 2026-06-30 23:22 UTCEPSS rescore
  11. 2026-06-29 20:54 UTCEG score recompute
  12. 2026-06-29 14:06 UTCEPSS rescore
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-28 14:07 UTCEPSS rescore
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-28 04:56 UTCEPSS rescore
  17. 2026-06-27 21:01 UTCEG score recompute
  18. 2026-06-27 03:08 UTCEPSS rescore
  19. 2026-06-26 19:47 UTCEG score recompute
  20. 2026-06-25 17:06 UTCEG score recompute
  21. 2026-06-25 13:49 UTCEPSS rescore
  22. 2026-06-24 14:05 UTCEPSS rescore
  23. 2026-06-23 21:33 UTCEPSS rescore
  24. 2026-06-23 21:33 UTCEPSS rescore
  25. 2026-06-22 14:25 UTCEPSS rescore
Show 39 more
  1. 2026-06-22 14:25 UTCEPSS rescore
  2. 2026-06-21 14:56 UTCEPSS rescore
  3. 2026-06-21 14:56 UTCEPSS rescore
  4. 2026-06-21 01:59 UTCEPSS rescore
  5. 2026-06-21 01:59 UTCEPSS rescore
  6. 2026-06-19 19:26 UTCEPSS rescore
  7. 2026-06-19 19:26 UTCEPSS rescore
  8. 2026-06-18 17:52 UTCEPSS rescore
  9. 2026-06-18 17:52 UTCEPSS rescore
  10. 2026-06-17 17:53 UTCEPSS rescore
  11. 2026-06-17 05:23 UTCEG score recompute
  12. 2026-06-16 17:52 UTCEPSS rescore
  13. 2026-06-16 04:12 UTCEG score recompute
  14. 2026-06-15 17:49 UTCEPSS rescore
  15. 2026-06-15 02:57 UTCEG score recompute
  16. 2026-06-14 01:45 UTCEG score recompute
  17. 2026-06-13 23:00 UTCEPSS rescore
  18. 2026-06-13 00:20 UTCEG score recompute
  19. 2026-06-12 23:12 UTCEPSS rescore
  20. 2026-06-12 23:12 UTCEPSS rescore
  21. 2026-06-11 23:05 UTCEG score recompute
  22. 2026-06-11 14:00 UTCEPSS rescore
  23. 2026-06-10 22:18 UTCEPSS rescore
  24. 2026-06-10 21:55 UTCEG score recompute
  25. 2026-06-10 13:22 UTCEPSS rescore
  26. 2026-06-10 13:22 UTCEPSS rescore
  27. 2026-06-09 20:44 UTCEG score recompute▲ 1.20
  28. 2026-06-08 23:31 UTCNVD updateCVSS v3 → 4.3 · severity → MEDIUM
  29. 2026-06-08 14:17 UTCEPSS rescore
  30. 2026-06-08 14:17 UTCEPSS rescore
  31. 2026-06-07 15:25 UTCEPSS rescore
  32. 2026-06-07 15:25 UTCEPSS rescore
  33. 2026-06-06 22:45 UTCEG score recompute
  34. 2026-06-06 13:47 UTCEPSS rescore
  35. 2026-06-06 13:47 UTCEPSS rescore
  36. 2026-06-05 22:47 UTCEPSS rescore
  37. 2026-06-04 01:04 UTCEG score recompute
  38. 2026-06-01 03:22 UTCEG score recompute
  39. 2026-05-24 06:13 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45739?
CVE-2026-45739 is a medium vulnerability published on May 19, 2026. 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…
When was CVE-2026-45739 disclosed?
CVE-2026-45739 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on June 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45739 actively exploited?
CVE-2026-45739 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45739?
CVE-2026-45739 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-45739?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45739, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45739

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