Critical severity · published Sep 30, 2022
CVE-2022-2778
In affected versions of Octopus Deploy it is possible to bypass rate limiting on login using null bytes
9.8
CVSS
0.9%
EPSS
No
On KEV
Description
In affected versions of Octopus Deploy it is possible to bypass rate limiting on login using null bytes.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OS
Octopus Server · Octopus Deploy
3.0 before unspecified; before 2022.2.8277; 2022.3.348 before unspecified; before 2022.3.10586; 2022.4.791 before unspecified; before 2022.4.1371 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-2778
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-2778
Patch
https://advisories.octopus.com/post/2022/sa2022-15/
More from Octopus Server
9.8
CVE-2022-2572
In affected versions of Octopus Server where access is managed by an external authentication provider, it was possible that the API key/keys of a disabled/deleted user were still…
9.1
CVE-2026-0704
In affected version of Octopus Deploy it was possible to remove files and/or contents of files on the host using an API endpoint
9.1
CVE-2022-2782
In affected versions of Octopus Server it is possible for a session token to be valid indefinitely due to improper validation of the session token parameters
8.7
CVE-2026-116870
In affected versions of Octopus Server, OIDC token issuer validation was performed inconsistently
8.7
CVE-2026-102488
In affected versions, Octopus Server incorrectly evaluates multiple scoped permission assignments, allowing a highly privileged user to obtain deployment permissions beyond those…
