CVE-2022-27889Network attack vector

Authentication disruption via unauthenticated request saturation

Published Jun 14, 2022 · Updated Sep 16, 2024

Denial of service in Palantir Foundry Multipass before 3.647.0 allows remote attackers to interrupt authentication and authorization. The backend service processes a high load of specific unauthenticated requests through inefficient code paths until access operations fail. No account is required; the interruption is transient and can degrade performance or cause login failures while request saturation continues.

CVSS severity5.3
Medium
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Palantir Foundry Multipass before 3.647.0 allows remote attackers to interrupt authentication and authorization. The backend service processes a high load of specific unauthenticated requests through inefficient code paths until access operations fail. No account is required; the interruption is transient and can degrade performance or cause login failures while request saturation continues.

The record

CVE
CVE-2022-27889
Published
Jun 14, 2022
Updated
Sep 16, 2024
Vendor
Palantir Technologies
Product
Palantir Foundry Multipass
Classifications
CWE-400, CWE-913, T1499.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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 <3.647.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Palantir Technologies · Palantir Foundry Multipassversion=unspecified <3.647.0

Published CVSS scores

5.3Palantir TechnologiesCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.4National Vulnerability DatabaseAV:N/AC:L/Au:N/C:N/I:P/A:P
9.1National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-913Improper Control of Dynamically-Managed Code Resources
T1499.002Service Exhaustion Flood

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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