Coin3:
Affects coin3Source GCVE Database
Not known to be exploited · CVSS 2.9 Low · fixed in 2.6.1-2ubuntu0.5 : update coin3 when convenient.
Data as of 15 Nov 2026, 08:42 UTC
Contested
Scorers differ by 2 or more points| CNA (mitre) | CVSS 3.1 | 2.9 |
|---|---|---|
| ADP (redhat-SADP) | CVSS 3.1 | 7.5 |
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.6.1-2ubuntu0.5, 2.7.4-1ubuntu0.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 10 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.
What to do
Upgrade the Ubuntu expat to 2.6.1-2ubuntu0.5 (package) or 2.7.4-1ubuntu0.1 (package).
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10cadaverpkg:deb/ubuntu/cadaver?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10matanzapkg:deb/ubuntu/matanza?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10swish-epkg:deb/ubuntu/swish-e?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10tdompkg:deb/ubuntu/tdom?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10wbxml2pkg:deb/ubuntu/wbxml2?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10xmlrpc-cpkg:deb/ubuntu/xmlrpc-c?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available and has been released in Ubuntu package versions 2.6.1-2ubuntu0.5 and 2.7.4-1ubuntu0.1. Users should update libexpat to these or later versions to remediate the vulnerability. Standard system updates on supported Ubuntu releases will apply the necessary patches. No additional mitigation steps are required beyond applying the official updates.
Description
A denial of service vulnerability exists in libexpat before version 2.8.1 due to inefficient attribute name collision checks. This flaw allows an attacker to cause excessive resource consumption by processing moderately sized crafted XML documents, leading to a denial of service condition. The issue affects multiple Ubuntu package versions and has been assigned CVE-2026-45186 with a high severity rating.