CVE-2026-58023: Apache Thrift: c_glib heap out-of-bounds read in transport leftover-bytes path
CSIRTS triage
- What
- The c_glib transport has a heap out-of-bounds read in the leftover-bytes handling path.
- Who is affected
- Applications using Apache Thrift c_glib transport bindings with untrusted or malformed input.
- Urgency
- Critical; CVSS 9.1 and out-of-bounds read can lead to information disclosure or crash.
- Action
- Upgrade Apache Thrift to patched version or restrict input validation before passing to c_glib transport.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58023
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Moderate exploitation riskCVE-2026-580231.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 62% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-58023 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for Apache Thrift
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalCVE-2026-48144: Apache Thrift: c_glib TLS Client Missing Hostname Verificationmsrc · 2026-08-06
- highCVE-2026-48586: Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift: TZli…msrc · 2026-08-06
- highCVE-2026-58389: Apache Thrift: Rust binary protocol non-strict path missing string size limitmsrc · 2026-08-06
- highCVE-2026-43871: Apache Thrift, Apache Thrift, Apache Thrift, Apache Thrift: TCompactProtocol varint byte-count…msrc · 2026-08-06
- mediumCVE-2026-41606: Apache Thrift: c_glib dispatch stack overflowmsrc · 2026-08-06
- mediumCVE-2026-41607: Apache Thrift: C++ JSON OOB readmsrc · 2026-08-06
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