CVE-2026-59248
CVE-2026-59248: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-59248] Denial of Service due to unbounded HPACK/QPACK prefixed-integer decoding
CVE-2026-59248Source published Source updated
Allocation of resources without limits vulnerability in ninenines cowlib allows an unauthenticated remote HTTP/2 or HTTP/3 peer to exhaust memory on the vulnerable server (or client) and cause a denial of service. The HPACK and QPACK prefixed-integer decoder cow_hpack_common:dec_big_int/3 in src/cow_hpack_common.hrl (invoked from cow_hpack:decode/2 in src/cow_hpack.erl and from cow_qpack:decode_field_section/3 in src/cow_qpack.erl) reads continuation octets until it sees one whose high bit is clear, evaluating Int + (Value bsl M) at each step with the shift M growing by seven per octet. No limit is enforced on the number of continuation octets, on the resulting bit width, or on the value; the decoder consumes whatever encoded length the peer supplies. Because Erlang integers are…
- Affected products in this advisory
- Red Hat Hardened Images
- Source-reported affected versions
- < 2.0.0
- < 2.19.0
- Source-reported fixed versions
- rabbitmq-server4-3-main-4.3.4-0.2.hum1
- rabbitmq-server4-2-main-4.2.9-0.2.hum1
- rabbitmq-server4-3-main-4.3.5-0.1.hum1
- RHSA-2026:47231
2 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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