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Red Hat · Security advisory · July 6, 2026
Red Hat · Security advisory · July 6, 2026RHSA-2026:67517: grafana security update
RHSA-2026:67517, released July 6, 2026, fixes 20 CVEs in grafana (version 10.2.6-26.el10_0). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
20
1 rated Critical
Exploited
0
None reported
Highest CVSS
10.0
Base score, 0 to 10
Highest EPSS
0.0183
79th percentile
Priority of the 20 CVEs
Patch now 0
Urgent 1
High 19
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| grafana | RHEL 10 | 10.2.6-26.el10_0 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-39821 | Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna | 10.0 | 0.0183 | None reported |
| High | CVE-2026-42499 | Quadratic string concatenation in consumePhrase in net/mail | 8.8 | 0.0080 | None reported |
| High | CVE-2026-39820 | Quadratic string concatentation in consumeComment in net/mail | 8.8 | 0.0078 | None reported |
| High | CVE-2026-27137 | Incorrect enforcement of email constraints in crypto/x509 | 9.1 | 0.0066 | None reported |
| High | CVE-2026-33818 | Enforce maximum recursion depth in encoding/asn1 | 8.8 | 0.0057 | None reported |
| High | CVE-2026-56853 | Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http | 8.8 | 0.0057 | None reported |
| High | CVE-2026-56859 | Add recursion depth guard during decode in encoding/xml | 8.8 | 0.0057 | None reported |
| High | CVE-2026-56862 | Limit handshake messages we are willing to accept post-handshake in crypto/tls | 8.8 | 0.0057 | None reported |
| High | CVE-2026-42504 | Quadratic complexity in WordDecoder.DecodeHeader in mime | 8.8 | 0.0056 | None reported |
| High | CVE-2026-56860 | Avoid quadratic complexity in resolvePath in net/url | 8.8 | 0.0055 | None reported |
| High | CVE-2026-42127 | grafana: The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated atta... | 7.5 | 0.0043 | None reported |
| High | CVE-2026-8609 | grafana: An unauthenticated attacker can repeatedly call Grafana's OAuth login route with unique values, causing unbounded mem... | 7.4 | 0.0040 | None reported |
| High | CVE-2026-33382 | grafana: Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before process... | 7.4 | 0.0039 | None reported |
| High | CVE-2026-33810 | Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509 | 9.1 | 0.0035 | None reported |
| High | CVE-2026-56858 | Fix Javascript regexp context tracking in html/template | 8.8 | 0.0031 | None reported |
| High | CVE-2026-33376 | grafana: When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses | 7.4 | 0.0028 | None reported |
| High | CVE-2026-33377 | grafana: Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB | 7.5 | 0.0023 | None reported |
| High | CVE-2026-25681 | Invoking incorrect handling of character references in DOCTYPE nodes in golang.org/x/net/html | 8.7 | 0.0022 | None reported |
| High | CVE-2026-27136 | Invoking duplicate attributes can cause XSS in golang.org/x/net/html | 8.7 | 0.0022 | None reported |
| High | CVE-2026-42502 | Invoking incorrect handling of HTML elements in foreign content in golang.org/x/net/html | 8.2 | 0.0022 | None reported |
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