Linux · Security advisory · June 18, 2026
RHSA-2026:55800: haproxy security update
RHSA-2026:55800, released June 18, 2026, fixes 2 CVEs in haproxy (version 3.0.5-4.el10_0.3). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
2
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0048
41st percentile
Priority of the 2 CVEs
Patch now 0
Urgent 0
High 2
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| haproxy | RHEL 10 | 3.0.5-4.el10_0.3 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2026-55204 | HAProxy - NULL Pointer Dereference in hpack_dht_insert Function | 7.5 | 0.0048 | None reported | |
| High | CVE-2026-55203 | HAProxy - Integer Overflow in FCGI Demux Record Length Field | 9.1 | 0.0033 | None reported |
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