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CVE-2026-1157217.5HighCWE-770

CVE-2026-115721: Apache Vysper: Unbounded allocation

Apache Software Foundation · Apache Vysper

Vendor fix available · Affected: Apache Software Foundation Apache Vysper · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days
41st percentile
050100

Higher than 41% of scored CVEs

7.5HighCVSS 3.1
LowHigh

DescriptionCVE.org

UNSUPPORTED WHEN ASSIGNED Unbounded allocation in XML parsing in Apache Vysper; all versions, may lead to an out of memory condition. This issue affects all versions of Apache Vysper. Apache Vysper is an XMPP (Jabber) server library. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Apache Software Foundation · Apache Vysper0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Published
October 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-115721 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References