CVE-2022-2822Network attack vector

Account takeover via unrestricted login attempts

Published Aug 15, 2022 · Updated Aug 3, 2024

Improper restriction of excessive authentication attempts in OctoPrint before 1.9.0 allows remote attackers to take over accounts via brute-force login attempts. The /login POST handler accepted unlimited failed credentials because no rate limiter was applied, allowing repeated username and password guesses. Exploitation requires network access to the web interface but no account, and successful guessing grants the targeted user’s account privileges.

CVSS severity7.5
High
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper restriction of excessive authentication attempts in OctoPrint before 1.9.0 allows remote attackers to take over accounts via brute-force login attempts. The /login POST handler accepted unlimited failed credentials because no rate limiter was applied, allowing repeated username and password guesses. Exploitation requires network access to the web interface but no account, and successful guessing grants the targeted user’s account privileges.

The record

CVE
CVE-2022-2822
Published
Aug 15, 2022
Updated
Aug 3, 2024
Vendor
OctoPrint
Product
OctoPrint
Classifications
CWE-307, T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OctoPrint · OctoPrintversion=unspecified <1.9.0

Published CVSS scores

7.5GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.7OSVCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110.001Password Guessing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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