[UPDATE] [high] Golang Go: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Golang Go to conduct an unspecified attack, perform a denial of service, and present false information.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to conduct unspecified attacks, perform a denial of service, and present false information.
- Who is affected
- Deployments of Golang Go are affected by these vulnerabilities.
- Urgency
- Remediation is urgent due to the high severity of the vulnerabilities, although they have not been exploited yet.
- Action
- Update Golang Go to the latest version to mitigate these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1776
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.
- Low exploitation riskCVE-2026-271450.94% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 57% of all scored CVEs.
- Low exploitation riskCVE-2026-425040.56% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
- Low exploitation riskCVE-2026-425070.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-27145 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-42504 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-42507 | 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 Golang Go
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.
- medium[UPDATE] [medium] Golang Go: Multiple vulnerabilitiescert-bund · 2026-07-10
- high[UPDATE] [high] Golang Go: Multiple vulnerabilities allow unspecified attackcert-bund · 2026-07-10
- medium[NEW] [medium] Golang Go: Multiple vulnerabilities allow information disclosurecert-bund · 2026-07-10
- high[UPDATE] [high] Golang Go: Multiple vulnerabilitiescert-bund · 2026-07-10
- medium[UPDATE] [medium] Golang Go: Multiple vulnerabilitiescert-bund · 2026-07-10
- medium[UPDATE] [medium] Golang Go: Vulnerability allows Denial of Servicecert-bund · 2026-07-10
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