Open Redirect in OAuth2 Proxy
Published Jan 30, 2020
6.1
MEDIUMCVSS 3.1
EPSS 1.30%
Description
OAuth2 Proxy before 5.0 has an open redirect vulnerability. Authentication tokens could be silently harvested by an attacker. This has been patched in version 5.0.
Affected products
-
- Version < 5.0.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Pusher | OAuth2 Proxy | n/a |
|
- < 5.0.0
No data.
No Red Hat product state for this CVE.
github.com/oauth2-proxy/oauth2-proxy
Go
Introduced 0 Fixed 5.0.0
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/oauth2-proxy/oauth2-proxy | 0 | 5.0.0 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
1 other source (GHSA) ▾
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2021-2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 1.30% (0.01304) | 69.53th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.30% (0.01304) | 69.24th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.11% (0.00114) | 45.34th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.11% (0.00114) | 45.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00114) | 43.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Mar 31, 2022 | 3.28% (0.03283) | 66.48th | v2 (v2022.01.01) |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Jan 5, 2022 | 0.83% (0.00833) | 58.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (9)
- https://blog.detectify.com/2019/05/16/the-real-impact-of-an-open-redirect/
- https://github.com/advisories/GHSA-qqxw-m5fj-f7gv Advisory
- https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-qqxw-m5fj-f7gv
- https://github.com/oauth2-proxy/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2
- https://github.com/oauth2-proxy/oauth2_proxy/releases/tag/v5.0.0
- https://github.com/pusher/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2 x_refsource_MISCPatchThird Party Advisory
- https://github.com/pusher/oauth2_proxy/releases/tag/v5.0.0 x_refsource_MISCRelease NotesThird Party Advisory
- https://github.com/pusher/oauth2_proxy/security/advisories/GHSA-qqxw-m5fj-f7gv x_refsource_CONFIRMExploitPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-5233
| Link | Providers | Tags |
|---|---|---|
| https://blog.detectify.com/2019/05/16/the-real-impact-of-an-open-redirect/ | ||
| https://github.com/advisories/GHSA-qqxw-m5fj-f7gv | Advisory | |
| https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-qqxw-m5fj-f7gv | ||
| https://github.com/oauth2-proxy/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2 | ||
| https://github.com/oauth2-proxy/oauth2_proxy/releases/tag/v5.0.0 | ||
| https://github.com/pusher/oauth2_proxy/commit/a316f8a06f3c0ca2b5fc5fa18a91781b313607b2 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/pusher/oauth2_proxy/releases/tag/v5.0.0 | x_refsource_MISCRelease NotesThird Party Advisory | |
| https://github.com/pusher/oauth2_proxy/security/advisories/GHSA-qqxw-m5fj-f7gv | x_refsource_CONFIRMExploitPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-5233 |
Change history (0)
No recorded changes yet.