CVE-2022-27890Network attack vector

Traffic interception via missing TLS hostname validation

Published Feb 16, 2023 · Updated Mar 18, 2025

Improper TLS hostname validation in Palantir AtlasDB before 0.730.0 allows man-in-the-middle attackers to read or modify traffic. Affected TLS client code misuses javax.net.ssl.SSLSocketFactory and fails to confirm that certificate hostnames match the intended peer. Exploitation requires a privileged network position; two-way TLS in Palantir platform deployments mitigates the exposed path.

CVSS severity6.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper TLS hostname validation in Palantir AtlasDB before 0.730.0 allows man-in-the-middle attackers to read or modify traffic. Affected TLS client code misuses javax.net.ssl.SSLSocketFactory and fails to confirm that certificate hostnames match the intended peer. Exploitation requires a privileged network position; two-way TLS in Palantir platform deployments mitigates the exposed path.

The record

CVE
CVE-2022-27890
Published
Feb 16, 2023
Updated
Mar 18, 2025
Vendor
Palantir Technologies
Product
AtlasDB
Classifications
CWE-297, CWE-295, T1557
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2025Record 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 <0.730.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Palantir Technologies · AtlasDBversion=unspecified <0.730.0

Published CVSS scores

6.3Palantir TechnologiesCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
7.4NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-297Improper Validation of Certificate with Host Mismatch
CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

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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