CVE-2020-8164
A deserialization of untrusted data vulnerability exists in rails < 5.2.4.3, rails < 6.0.3.1 which can allow an attacker to supply information can be inadvertently leaked fromStrong Parameters.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A deserialization of untrusted data vulnerability exists in rails < 5.2.4.3, rails < 6.0.3.1 which can allow an attacker to supply information can be inadvertently leaked fromStrong Parameters.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 4.89% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- rubyonrails/rails · debian/debian linux · opensuse/backports sle · opensuse/leap
- Source
- support@hackerone.com
EPSS 4.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00089.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00093.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00107.htmlMailing List, Third Party Advisory
- https://groups.google.com/g/rubyonrails-security/c/f6ioe4sdpbYPatch, Third Party Advisory
- https://hackerone.com/reports/292797Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00013.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4766Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00089.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00093.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00107.htmlMailing List, Third Party Advisory
- https://groups.google.com/g/rubyonrails-security/c/f6ioe4sdpbYPatch, Third Party Advisory
- https://hackerone.com/reports/292797Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00013.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4766Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.