CVE-2026-45568 json
zrok Python ProxyShare can be used as an SSRF proxy through absolute URL paths
published 2026-05-19 5 mo ago modified 2026-10-24 15 d ago also GHSA-jh67-hwqw-m5r7 , PYSEC-2026-577 , EUVD-2026-44972
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- netfoundry zrok 2.0.3
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:L |
| CNA | 4.0 | 9.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | zrok | >=0.4.47, <=1.1.11 |
no fix listed |
Affected products
- openziti zrok
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/openziti/zrok/commit/7c1dc3ecd1c89d8cd2e845a72c3878bd2d31b4fe
patch
-
github.com
/openziti/zrok/security/advisories/GHSA-jh67-hwqw-m5r7
web, vendor-advisory
-
github.com
/openziti/zrok/releases/tag/v2.0.3
release-notes
-
github.com
/openziti/zrok
package
-
pypi.org
/project/zrok
package
-
github.com
/advisories/GHSA-jh67-hwqw-m5r7
advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-45568
advisory
Sources
- CVE List CVE-2026-45568
- GitHub Advisory GHSA-jh67-hwqw-m5r7
- NVD CVE-2026-45568
- OSV PYSEC-2026-577
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.