Vulnerability feed
CVE and vendor PSIRT advisories from 13 sources, last 30 days. Updated hourly, last run
| Expand | Severity |
Score |
Advisory |
Title |
Source |
Flags |
Published |
|---|---|---|---|---|---|---|---|
| High | 8.7 | CVE-2026-115506 |
libexpat through 2.9.0 contains a denial of service vulnerability because billion laughs protection in accountingDiffTolerated() in xmlparse.c detects entity amplification too late
libexpat, Expatlibexpat, Expat
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NVD | |||
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CVE-2026-115506libexpat through 2.9.0 contains a denial of service vulnerability because billion laughs protection in accountingDiffTolerated() in xmlparse.c detects entity amplification too late
Executive summaryThe advisory says libexpat through version 2.9.0, a widely used XML parsing library, can be driven into a denial of service condition. The advisory does not state a severity score, and the text provided does not describe a vendor fix or recommended action beyond the vulnerability description. Technical summaryThe flaw is described as a denial of service caused by billion laughs protection in accountingDiffTolerated() in xmlparse.c detecting entity amplification too late. The advisory does not state the attack vector, required preconditions, or whether authentication is needed. Affected versions are stated as through 2.9.0, and no fixed version is stated. No workaround and no detection guidance are stated. The repository text also says Expat has unfixed security issues and refers to issue #1160 for details, which is not included in the advisory. Summaries are generated by AI from the linked advisory text. Confirm versions and fixes at the source. Summarized from github.com/libexpat/libexpat Impact if exploitedConfidentialityNone IntegrityNone AvailabilityHigh
How it is exploited
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affects
NIST National Vulnerability DatabasePublished
Read the advisory
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