CVE-2026-55526
Hostname-validation bypass in PraisonAI agents enables SSRF to internal HTTP services.
Is CVE-2026-55526 being exploited?
Not confirmed. CVE-2026-55526 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.21% probability of exploitation in the next 30 days.
How severe is CVE-2026-55526?
CVE-2026-55526 is rated High with a CVSS score of 8.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-55526?
Yes. A fix has been recorded for CVE-2026-55526. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-55526 affect?
CVE-2026-55526 affects praisonaiagents < 1.6.58, PraisonAI multi-agent deployments, applications using spider_tools._host_is_blocked. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-55526?
Upgrade to praisonaiagents >=1.6.58 and restrict/monitor outbound HTTP to internal networks.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Server-side request forgery: attacker can force agent to fetch internal HTTP endpoints (e.g., 127.0.0.1) to access or trigger internal services.
Patch when possible
- affected< 4.6.58
- affected< 1.6.58
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.