CVSS 4.0
8.5 highCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE-2026-126050 apitrace apitrace: Heap-based Buffer Overflow
High (8.5) in apitrace apitrace. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.
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apitrace 2.0 through 14.0 contains a heap-based buffer overflow in SnappyFile::flushReadCache() that allows attackers to write past m_compressedCache via an oversized compressed chunk length. Attackers can supply a crafted .trace file whose 4-byte chunk length exceeds the fixed buffer size, corrupting heap memory when users dump, inspect, or replay it.
Severity
CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- EPSS
- 0.2% estimated probability of exploitation activity in the next 30 days; 7th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-10. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-122 Heap-based Buffer Overflow
- Published
- Modified
- Assigned by
- VulnCheck (CNA)
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| apitrace | from 2.0 through 14.0 |
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12, 13, 14 | apitrace | no fix listed | DEBIAN-CVE-2026-126050 |
| Ubuntu | 16.04:LTS, 18.04:LTS, 20.04:LTS and 3 more | apitrace | no fix listed | UBUNTU-CVE-2026-126050 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu.
Attack patterns (CAPEC)
- CAPEC-92 Forced Integer Overflow Likelihood: High · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.
History
- The NVD deferred its analysis
Changes since this site first stored the record. The same for every record: /api/public/changes.
References
- https://github.com/apitrace/apitrace/blob/18cfd388ac47a9e00978b34d6c20341f3e2cdb56/lib/trace/trace_file_snappy.cpp#L215-L235
- https://github.com/apitrace/apitrace/commit/3890c5a448addfd75ccbe1bd09e3075de6fb3395
- https://www.vulncheck.com/advisories/apitrace-2.0-through-14.0-heap-buffer-overflow-via-snappyfile-flushreadcache