HIGHPyPI →
HTTPX2: Quadratic SSE line buffering can cause CPU denial of service
HTTPX2: Quadratic SSE line buffering can cause CPU denial of service
Affected packages
- httpx2— 2.5.0 → 2.10.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/pydantic/httpx2/security/advisories/GHSA-f2fp-rgf2-35cp
- https://nvd.nist.gov/vuln/detail/CVE-2026-84378
- https://github.com/pydantic/httpx2/pull/1071
- https://github.com/pydantic/httpx2/pull/1117
- https://github.com/pydantic/httpx2/commit/cbfc0e04ef6507da29ccbb3b9c2e5b23dd693414
- https://github.com/pydantic/httpx2
- https://github.com/pydantic/httpx2/releases/tag/v2.10.0
Structured record: https://osv.dev/vulnerability/GHSA-f2fp-rgf2-35cp
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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