CVE-2023-31007

UNRATEDCVSS · not yet scored
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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
1.0%
EPSS %ILE
63rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
1.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 12, 2023

Last Modified

November 21, 2024

References (1)

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.apache.pulsar:pulsar-broker2.11.0
  • 2.9.0 up to 2.10.4: fixed in 2.10.4
  • 2.11.0 up to 2.11.1: fixed in 2.11.1
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Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 34× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 92 of 196 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 8 repeat rows among the latest 100 are merged into the row they repeat. The 104 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  2. 2026-10-22 16:31 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  3. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  4. 2026-10-20 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  5. 2026-10-19 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  6. 2026-10-18 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  7. 2026-10-18 08:03 UTCEG score recompute
  8. 2026-10-17 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  9. 2026-10-16 16:35 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  10. 2026-10-15 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  11. 2026-10-14 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  12. 2026-10-13 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  13. 2026-10-13 11:54 UTCOSV refresh
  14. 2026-10-12 18:28 UTCEG score recompute
  15. 2026-10-12 16:30 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  16. 2026-10-11 21:53 UTCEG score recompute
  17. 2026-10-11 13:45 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  18. 2026-10-10 19:57 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  19. 2026-10-09 20:05 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  20. 2026-10-08 17:06 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  22. 2026-10-06 15:15 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  24. 2026-10-04 23:20 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  25. 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  1. 2026-10-02 16:23 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  2. 2026-10-01 19:47 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  3. 2026-09-30 16:22 UTCEG score recompute
  4. 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  5. 2026-09-29 15:16 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  6. 2026-09-28 13:49 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  7. 2026-09-27 13:42 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  8. 2026-09-26 00:22 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  9. 2026-09-24 14:01 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  10. 2026-09-23 13:45 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  11. 2026-09-23 05:45 UTCOSV refresh
  12. 2026-09-22 14:45 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  13. 2026-09-20 20:14 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  14. 2026-09-16 14:05 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  15. 2026-09-13 16:44 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  16. 2026-09-12 14:58 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  17. 2026-09-11 14:50 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  18. 2026-09-11 09:34 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  19. 2026-09-08 21:57 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  20. 2026-09-07 15:59 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  21. 2026-09-06 13:45 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  22. 2026-09-05 15:25 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  23. 2026-09-04 13:58 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  24. 2026-09-04 05:04 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  25. 2026-09-04 00:16 UTCOSV refresh
  26. 2026-09-02 14:09 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  27. 2026-09-01 13:51 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  28. 2026-08-30 19:15 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  29. 2026-08-30 01:19 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  30. 2026-08-28 21:38 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  31. 2026-08-27 14:23 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  32. 2026-08-26 14:43 UTCEPSS rescoreEPSS 1.0% · 60th percentile
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  34. 2026-08-24 14:14 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  35. 2026-08-23 00:17 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  36. 2026-08-21 23:46 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  37. 2026-08-20 22:53 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  38. 2026-08-19 17:02 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  39. 2026-08-18 13:46 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  40. 2026-08-17 13:44 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  41. 2026-08-17 13:14 UTCOSV refresh
  42. 2026-08-16 14:53 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  43. 2026-08-16 02:12 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  44. 2026-08-15 01:28 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  45. 2026-08-13 21:58 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  46. 2026-08-12 13:48 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  47. 2026-08-11 13:39 UTCEPSS rescoreEPSS 1.0% · 60th percentile
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  51. 2026-08-06 13:44 UTCEPSS rescoreEPSS 1.0% · 60th percentile
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  55. 2026-08-03 10:34 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  56. 2026-08-02 07:45 UTCOSV refresh
  57. 2026-08-02 02:24 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  58. 2026-08-01 04:13 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  59. 2026-07-30 16:26 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  60. 2026-07-30 01:28 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  61. 2026-07-28 15:34 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  62. 2026-07-27 14:10 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  63. 2026-07-26 14:52 UTCEPSS rescoreEPSS 1.0% · 59th percentile
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  66. 2026-07-23 14:16 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  67. 2026-07-23 02:21 UTCEG score recompute

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Frequently asked(4)

What is CVE-2023-31007?
CVE-2023-31007 is a vulnerability whose severity is not yet rated; its CVE record was published on July 12, 2023. 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…
When was the CVE record for CVE-2023-31007 published?
The CVE record for CVE-2023-31007 was published on July 12, 2023. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2023-31007 actively exploited?
CVE-2023-31007 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (63rd percentile of EPSS-scored CVEs).
How do I remediate CVE-2023-31007?
A fix for CVE-2023-31007 is available: update to the fixed version the vendor names in its advisory.

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