CVE-2023-31007

mediumpriority · track · 26EPSS 0.010 · 63 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.02% (63rd) EPSS

CVSS 6.5 · medium

Is it mine?

13 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Improper Authentication vulnerability in Apache Software Foundation Apache Pulsar Broker allows a client to stay connected to a broker after authentication data expires if the client connected through the Pulsar Proxy when the broker is configured with authenticateOriginalAuthData=false or if a client connects directly to a broker with a specially crafted connect command when the broker is configured with authenticateOriginalAuthData=false. This issue affects Apache Pulsar: through 2.9.4, from 2.10.0 through 2.10.3, 2.11.0. 2.9 Pulsar Broker users should upgrade to at least 2.9.5. 2.10 Pulsar Broker users should upgrade to at least 2.10.4. 2.11 Pulsar Broker users should upgrade to at least 2.11.1. 3.0 Pulsar Broker users are unaffected. Any users running the Pulsar Broker for 2.8.* and earlier should upgrade to one of the above patched versions.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · none–medium · 0–6.5

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.10noneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Nsecondary · ENISA EU

v3.10noneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Nsecondary · security@apache.orgexploitability 2.8 · impact 0

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287USCWE-287US

affected products (13)

Products and version ranges known to be affected.

Apache Software Foundation Apache Pulsar≤ 2.11.0enisa_euvdEU
Apache Software Foundation Apache Pulsar≤ 2.10.0 ≤2.10.3enisa_euvdEU
Apache Software Foundation Apache Pulsar0 → 2.9.5enisa_euvdEU
Apache Software Foundation Pulsar≤ 2.11.0fstec_bduRU
Apache Software Foundation Pulsar≤ 2.11.0 candidate 5fstec_bduRU
Apache Software Foundation Pulsar≤ 2.9.5fstec_bduRU
Apache Software Foundation Pulsar≤ 2.11.0 candidate 1fstec_bduRU
Apache Software Foundation Pulsar2.10.0 → 2.10.3fstec_bduRU
apache pulsar< 2.9.5nvdUScpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:*
apache pulsar2.10.0 → 2.10.3nvdUScpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:*
apache pulsar= 2.11.0nvdUScpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:*
Maven org.apache.pulsar:pulsar-broker2.11.0 → 2.11.1osvUSpkg:maven/org.apache.pulsar/pulsar-broker
Maven org.apache.pulsar:pulsar-broker2.9.0 → 2.10.4osvUSpkg:maven/org.apache.pulsar/pulsar-broker

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-47r2-phr8-m8cpApache Pulsar Broker Improper Authentication vulnerability2023-07-12ghsa · osvUS
Improper Authentication vulnerability in Apache Software Foundation Apache Pulsar Broker allows a client to stay connected to a broker after authentication data expires if the client connected through the Pulsar Proxy when the broker is configured with authenticateOriginalAuthData=false or if a client connects directly to a broker with a specially crafted connect command when the broker is configured with authenticateOriginalAuthData=false. This issue affects Apache Pulsar: through 2.9.4, from 2.10.0 through 2.10.3, 2.11.0. 2.9 Pulsar Broker users should upgrade to at least 2.9.5. 2.10 Pulsar Broker users should upgrade to at least 2.10.4. 2.11 Pulsar Broker users should upgrade to at least 2.11.1. 3.0 Pulsar Broker users are unaffected. Any users running the Pulsar Broker for 2.8.* and earlier should upgrade to one of the above patched versions.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2023-07-12modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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