CVE-2026-45568

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 71% 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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: None knownExposed: 0

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

zrok is software for sharing web services, files, and network resources. Prior to 2.0.3, zrok's Python SDK ProxyShare Flask proxy route accepts an absolute URL in the request path and passes it to urllib.parse.urljoin, allowing the requested path to replace the configured target host and causing requests.request to return a server-side response from an attacker-chosen URL. This issue is fixed in version 2.0.3.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

May 19, 2026

Last Modified

July 20, 2026

Advisory Details (3)

Auto-updated Aug 29, 2026
Patch available. Sources: github_release, github, github_commit.
github Patch Available

zrok Python ProxyShare can be used as an SSRF proxy through absolute URL paths · Advisory · openziti/zrok · GitHub

https://github.com/openziti/zrok/security/advisories/GHSA-jh67-hwqw-m5r7
github_release Patch Available

v2.0.3

Patch available: openziti/zrok v2.0.3

https://github.com/openziti/zrok/releases/tag/v2.0.3
github_commit

commit 7c1dc3ecd1c8 (openziti/zrok)

Fix landed in openziti/zrok commit 7c1dc3ecd1c8 — awaiting tagged release

https://github.com/openziti/zrok/commit/7c1dc3ecd1c89d8cd2e845a72c3878bd2d31b4fe

Vendor Advisories for CVE-2026-45568(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
pipzrok—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
zrok0.4.47 ... 1.1.9 (22 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 86× 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.

Showing the most recent 100 of 145 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-08-30 19:17 UTCEPSS rescore
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-28 21:41 UTCEPSS rescore
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-23 21:31 UTCGHSA enrichment
  11. 2026-08-23 17:05 UTCEG score recompute
  12. 2026-08-23 17:05 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 23:38 UTCEG score recompute
  16. 2026-08-21 23:38 UTCGHSA enrichment
  17. 2026-08-20 22:55 UTCEPSS rescore
  18. 2026-08-20 19:02 UTCEG score recompute
  19. 2026-08-20 19:02 UTCGHSA enrichment
  20. 2026-08-19 17:04 UTCEPSS rescore
  21. 2026-08-18 13:48 UTCEPSS rescore
  22. 2026-08-17 14:40 UTCEG score recompute
  23. 2026-08-17 14:40 UTCGHSA enrichment
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-17 10:00 UTCEG score recompute
Show 75 more
  1. 2026-08-17 10:00 UTCGHSA enrichment
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 12:18 UTCGHSA enrichment
  4. 2026-08-16 07:57 UTCGHSA enrichment
  5. 2026-08-16 03:35 UTCEG score recompute
  6. 2026-08-16 03:35 UTCGHSA enrichment
  7. 2026-08-16 02:14 UTCEPSS rescore
  8. 2026-08-15 01:30 UTCEPSS rescore
  9. 2026-08-14 23:52 UTCGHSA enrichment
  10. 2026-08-14 19:31 UTCGHSA enrichment
  11. 2026-08-14 15:10 UTCGHSA enrichment
  12. 2026-08-14 10:49 UTCGHSA enrichment
  13. 2026-08-14 06:28 UTCGHSA enrichment
  14. 2026-08-14 02:07 UTCEG score recompute
  15. 2026-08-14 02:07 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-13 10:45 UTCGHSA enrichment
  18. 2026-08-13 05:55 UTCGHSA enrichment
  19. 2026-08-13 01:04 UTCGHSA enrichment
  20. 2026-08-12 20:43 UTCGHSA enrichment
  21. 2026-08-12 16:22 UTCEG score recompute
  22. 2026-08-12 16:22 UTCGHSA enrichment
  23. 2026-08-12 13:51 UTCEPSS rescore
  24. 2026-08-12 12:00 UTCGHSA enrichment
  25. 2026-08-11 23:09 UTCGHSA enrichment
  26. 2026-08-11 18:48 UTCGHSA enrichment
  27. 2026-08-11 14:00 UTCEG score recompute
  28. 2026-08-11 14:00 UTCGHSA enrichment
  29. 2026-08-11 09:39 UTCGHSA enrichment
  30. 2026-08-11 04:59 UTCGHSA enrichment
  31. 2026-08-11 00:39 UTCEG score recompute
  32. 2026-08-11 00:39 UTCGHSA enrichment
  33. 2026-08-11 00:00 UTCEPSS rescore
  34. 2026-08-10 12:38 UTCGHSA enrichment
  35. 2026-08-10 08:11 UTCGHSA enrichment
  36. 2026-08-10 03:50 UTCGHSA enrichment
  37. 2026-08-09 23:29 UTCGHSA enrichment
  38. 2026-08-09 19:08 UTCGHSA enrichment
  39. 2026-08-09 14:47 UTCEG score recompute
  40. 2026-08-09 14:47 UTCGHSA enrichment
  41. 2026-08-09 13:46 UTCEPSS rescore
  42. 2026-08-09 10:26 UTCGHSA enrichment
  43. 2026-08-09 05:57 UTCGHSA enrichment
  44. 2026-08-09 01:36 UTCEG score recompute
  45. 2026-08-09 01:36 UTCGHSA enrichment
  46. 2026-08-08 16:37 UTCEPSS rescore
  47. 2026-08-08 12:52 UTCGHSA enrichment
  48. 2026-08-08 08:30 UTCGHSA enrichment
  49. 2026-08-08 04:09 UTCGHSA enrichment
  50. 2026-08-07 23:48 UTCGHSA enrichment
  51. 2026-08-07 19:27 UTCEG score recompute
  52. 2026-08-07 19:27 UTCGHSA enrichment
  53. 2026-08-07 15:06 UTCGHSA enrichment
  54. 2026-08-07 10:45 UTCGHSA enrichment
  55. 2026-08-07 06:18 UTCGHSA enrichment
  56. 2026-08-07 01:09 UTCGHSA enrichment
  57. 2026-08-06 19:20 UTCGHSA enrichment
  58. 2026-08-06 14:59 UTCEG score recompute
  59. 2026-08-06 14:59 UTCGHSA enrichment
  60. 2026-08-06 13:47 UTCEPSS rescore
  61. 2026-08-06 10:25 UTCGHSA enrichment
  62. 2026-08-06 06:04 UTCGHSA enrichment
  63. 2026-08-06 01:42 UTCGHSA enrichment
  64. 2026-08-05 21:21 UTCEG score recompute
  65. 2026-08-05 21:21 UTCGHSA enrichment
  66. 2026-08-05 19:17 UTCEPSS rescore
  67. 2026-08-04 15:10 UTCEPSS rescore
  68. 2026-08-04 10:38 UTCEPSS rescore
  69. 2026-08-04 06:02 UTCGHSA enrichment
  70. 2026-08-04 01:41 UTCGHSA enrichment
  71. 2026-08-03 21:20 UTCGHSA enrichment
  72. 2026-08-03 16:59 UTCEG score recompute
  73. 2026-08-03 16:59 UTCGHSA enrichment
  74. 2026-08-03 10:36 UTCEPSS rescore
  75. 2026-08-03 04:56 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-45568?
CVE-2026-45568 is a critical vulnerability published on May 19, 2026. zrok is software for sharing web services, files, and network resources. Prior to 2.0.3, zrok's Python SDK ProxyShare Flask proxy route accepts an absolute URL in the request path and passes it to urllib.parse.urljoin, allowing the requested path to replace the configured target host and causing…
When was CVE-2026-45568 disclosed?
CVE-2026-45568 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on July 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45568 actively exploited?
CVE-2026-45568 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.3% of all scored CVEs.
What is the CVSS score of CVE-2026-45568?
CVE-2026-45568 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-45568?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45568, 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-2026-45568

Explore →

Is Your Infrastructure Affected by CVE-2026-45568?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs