CVE-2025-27149

LOWNVD 2.72.7—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 2.7 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 53% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
2.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 2.7Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Zulip server provides an open-source team chat that helps teams stay productive and focused. Prior to 10.0, the data export to organization administrators feature in Zulip leaks private data. The collection of user-agent types identifying specific integrations or HTTP libraries (E.g., ZulipGitlabWebhook, okhttp, or PycURL) that have been used to access any organization on the server was incorrectly included in all three export types, regardless of if they were used to access the exported organization or not. The "public data" and "with consent" exports metadata including the titles of some topics in private channels which the administrator otherwise did not have access to, and none of the users consented to exporting and metadata for which users were in a group DM together. This vulnerability is fixed in 10.0.

CVSS v3
2.7
EG Score
2.7(medium)
EG Risk
—
EPSS
20.4%
KEV
Not listed

Published

March 31, 2025

Last Modified

September 27, 2025

References (1)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-22 14:07 UTCEPSS rescore
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  1. 2026-07-07 13:45 UTCEPSS rescore
  2. 2026-07-07 06:21 UTCOSV refresh
  3. 2026-07-06 16:27 UTCEPSS rescore
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  18. 2026-06-25 13:49 UTCEPSS rescore
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  34. 2026-06-18 17:13 UTCOSV refresh
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  40. 2026-06-13 22:59 UTCEPSS rescore
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  42. 2026-06-11 13:59 UTCEPSS rescore
  43. 2026-06-10 22:18 UTCEPSS rescore
  44. 2026-06-10 13:22 UTCEPSS rescore
  45. 2026-06-08 14:16 UTCEPSS rescore
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  47. 2026-06-07 15:24 UTCEPSS rescore
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  49. 2026-06-06 13:47 UTCEPSS rescore
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  63. 2026-05-31 00:16 UTCEPSS rescore
  64. 2026-05-31 00:16 UTCEPSS rescore
  65. 2026-05-30 08:33 UTCEG score recompute
  66. 2026-05-29 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2025-27149?
CVE-2025-27149 is a low vulnerability published on March 31, 2025. Zulip server provides an open-source team chat that helps teams stay productive and focused. Prior to 10.0, the data export to organization administrators feature in Zulip leaks private data. The collection of user-agent types identifying specific integrations or HTTP libraries (E.g.,…
When was CVE-2025-27149 disclosed?
CVE-2025-27149 was first published in the National Vulnerability Database on March 31, 2025, with the most recent update on September 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-27149 actively exploited?
CVE-2025-27149 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-27149?
CVE-2025-27149 has a CVSS v3 base score of 2.7 (NVD).
How do I remediate CVE-2025-27149?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-27149, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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