How severe is CVE-2023-31007?

CVE-2023-31007 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability none.

Is CVE-2023-31007 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31007?

CVE-2023-31007 primarily affects Apache Pulsar. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-31007?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-31007 published?

CVE-2023-31007 was published on 2023-07-12 and last updated on 2026-06-17.

CVE-2023-31007

CVE-2023-31007 is a none-severity vulnerability in Apache Pulsar with a CVSS 3.x base score of 0.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: None (CVSS 3.x base score 0.0)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Apache Pulsar
Published: 2023-07-12
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-31007?: 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.
How severe is CVE-2023-31007?: CVE-2023-31007 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability none.
Is CVE-2023-31007 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31007?: CVE-2023-31007 primarily affects Apache Pulsar. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-31007?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-31007 published?: CVE-2023-31007 was published on 2023-07-12 and last updated on 2026-06-17.

References

https://lists.apache.org/thread/qxn99xxyp0zv6jchjggn3soyo5gvqfxj

Affected products (4)

cpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:pulsar:2.11.0:-:*:*:*:*:*:*
cpe:2.3:a:apache:pulsar:2.11.0:candidate_1:*:*:*:*:*:*
cpe:2.3:a:apache:pulsar:2.11.0:candidate_5:*:*:*:*:*:*

More vulnerabilities in Apache Pulsar

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