Incorrect Authorization with specially crafted requests
Priority MEDIUM 51CWE-285Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-285.
Summary
Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization decisions may be made by Pomerium. This issue has been patched in versions 0.17.4, 0.18.1, 0.19.2, 0.20.1, 0.21.4 and 0.22.2.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00921 60th percentileScored 2026-11-07
Fix Fixed pomerium (pomerium): 0.22.2, 0.21.4, 0.20.1 +3github.com/pomerium/pomerium (Go): 0.22.2, 0.21.4, 0.20.1 +3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| pomerium | pomerium | 0.22.0 to before 0.22.2; 0.21.0 to before 0.21.4; 0.20.0 to before 0.20.1; 0.19.0 to before 0.19.2; 0.18.0 to before 0.18.1; before 0.17.4 | 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4 | Patch available | CNA |
| — | github.com/pomerium/pomerium (Go) | 0.22.0 to before 0.22.2 | 0.22.2 | Patch available | GHSA-pvrc-wvj2-f59p |
| — | github.com/pomerium/pomerium (Go) | 0.21.0 to before 0.21.4 | 0.21.4 | Patch available | GHSA-pvrc-wvj2-f59p |
| — | github.com/pomerium/pomerium (Go) | 0.20.0 to before 0.20.1 | 0.20.1 | Patch available | GHSA-pvrc-wvj2-f59p |
| — | github.com/pomerium/pomerium (Go) | 0.19.0 to before 0.19.2 | 0.19.2 | Patch available | GHSA-pvrc-wvj2-f59p |
| — | github.com/pomerium/pomerium (Go) | 0.18.0 to before 0.18.1 | 0.18.1 | Patch available | GHSA-pvrc-wvj2-f59p |
| — | github.com/pomerium/pomerium (Go) | before 0.17.4 | 0.17.4 | Patch available | GHSA-pvrc-wvj2-f59p |
- pomerium Vendorpomerium Affected 0.22.0 to before 0.22.2; 0.21.0 to before 0.21.4; 0.20.0 to before 0.20.1; 0.19.0 to before 0.19.2; 0.18.0 to before 0.18.1; before 0.17.4 Fixed in 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4 Patch available CNA
- github.com/pomerium/pomerium (Go) Vendor— Affected 0.22.0 to before 0.22.2 Fixed in 0.22.2 Patch available GHSA-pvrc-wvj2-f59p
- github.com/pomerium/pomerium (Go) Vendor— Affected 0.21.0 to before 0.21.4 Fixed in 0.21.4 Patch available GHSA-pvrc-wvj2-f59p
- github.com/pomerium/pomerium (Go) Vendor— Affected 0.20.0 to before 0.20.1 Fixed in 0.20.1 Patch available GHSA-pvrc-wvj2-f59p
- github.com/pomerium/pomerium (Go) Vendor— Affected 0.19.0 to before 0.19.2 Fixed in 0.19.2 Patch available GHSA-pvrc-wvj2-f59p
- github.com/pomerium/pomerium (Go) Vendor— Affected 0.18.0 to before 0.18.1 Fixed in 0.18.1 Patch available GHSA-pvrc-wvj2-f59p
- github.com/pomerium/pomerium (Go) Vendor— Affected before 0.17.4 Fixed in 0.17.4 Patch available GHSA-pvrc-wvj2-f59p
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pomerium:pomerium:*:*:*:*:*:*:*:* | before 0.17.4; 0.19.0 to before 0.19.2; 0.21.0 to before 0.21.4; 0.22.0 to before 0.22.2 | Vulnerable | pomerium |
| cpe:2.3:a:pomerium:pomerium:0.18.0:*:*:*:*:*:*:* | 0.18.0 | Vulnerable | pomerium |
| cpe:2.3:a:pomerium:pomerium:0.20.0:*:*:*:*:*:*:* | 0.20.0 | Vulnerable | pomerium |
- cpe:2.3:a:pomerium:pomerium:*:*:*:*:*:*:*:* Versions before 0.17.4; 0.19.0 to before 0.19.2; 0.21.0 to before 0.21.4; 0.22.0 to before 0.22.2 Vulnerable ·pomerium
- cpe:2.3:a:pomerium:pomerium:0.18.0:*:*:*:*:*:*:* Versions 0.18.0 Vulnerable ·pomerium
- cpe:2.3:a:pomerium:pomerium:0.20.0:*:*:*:*:*:*:* Versions 0.20.0 Vulnerable ·pomerium
Remediation
- Fix · CNA pomerium (pomerium) Fixed in 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4
- Fix · GHSA-pvrc-wvj2-f59p github.com/pomerium/pomerium (Go) Fixed in 0.22.2 Advisory →
- Fix · GHSA-pvrc-wvj2-f59p github.com/pomerium/pomerium (Go) Fixed in 0.21.4 Advisory →
- Fix · GHSA-pvrc-wvj2-f59p github.com/pomerium/pomerium (Go) Fixed in 0.20.1 Advisory →
- Fix · GHSA-pvrc-wvj2-f59p github.com/pomerium/pomerium (Go) Fixed in 0.19.2 Advisory →
- Fix · GHSA-pvrc-wvj2-f59p github.com/pomerium/pomerium (Go) Fixed in 0.18.1 Advisory →
- Fix · GHSA-pvrc-wvj2-f59p github.com/pomerium/pomerium (Go) Fixed in 0.17.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33189
- 2026-10-03 Alias added: GHSA-pvrc-wvj2-f59p
References
Advisory 2
Other 7
- https://github.com/pomerium/pomerium/releases/tag/v0.17.4
- https://github.com/pomerium/pomerium/releases/tag/v0.18.1
- https://github.com/pomerium/pomerium/releases/tag/v0.19.2
- https://github.com/pomerium/pomerium/releases/tag/v0.20.1
- https://github.com/pomerium/pomerium/releases/tag/v0.21.4
- https://github.com/pomerium/pomerium/releases/tag/v0.22.2
- https://github.com/pomerium/pomerium
More Pomerium vulnerabilities
- TI-2022-08610 Exposure of Sensitive Information in Pomerium CVSS 3.1CRITICAL 9.1
- TI-2021-16548 Incorrect handling of H2 GOAWAY + SETTINGS frames CVSS 3.1HIGH 8.6
- TI-2021-18069 OIDC claims not updated from Identity Provider in Pomerium CVSS 3.1HIGH 8.8
- TI-2021-16591 Incorrect Authorization with specially crafted requests CVSS 3.1HIGH 8.6
- TI-2021-16589 Excessive CPU usage in Pomerium CVSS 3.1HIGH 7.5
- TI-2024-26271 Pomerium exposed OAuth2 access and ID tokens in user info endpoint response CVSS 3.1MEDIUM 6.5
Sources
- CVE-2023-33189 · CVE Program
- CVE-2023-33189 · NVD
- FIRST EPSS
- GHSA-pvrc-wvj2-f59p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences