CVE Explorer
CVE-2026-34183
Issue summary: Remote peer may exhaust heap memory of the QUIC
server or client by flooding it with packets containing PATH_CHALLENGE
frames.
Impact summary: A malicious remote peer can cause an unbounded
memory allocation which can lead to an abnormal termination of the
application acting as a QUIC client or server and a Denial of Service.
A remote peer may exhaust heap memory by flooding the local
QUIC stack with PATH_CHALLENGE frames. The local QUIC stack
allocates a PATH_RESPONSE frame for
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"OpenSSL","vendor":"OpenSSL","versions":[{"lessThan":"4.0.1","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThan":"3.6.3","status":"affected","version":"3.6.0","versionType":"semver"},{"lessThan":"3.5.7","status":"affected","version":"3.5.0","versionType":"semver"},{"lessThan":"3.4.6","status":"affected","version":"3.4.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-1325","description":"CWE-1325 Improperly Controlled Sequential Memory Allocation","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"name":"3.6.3 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/5b306efb0b3779dfdd0803b4afc9d08c91f11517"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/cna/references/2
{"name":"3.5.7 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/7d06955ebe0ecf8adfd4c1e92018586da47ef9ac"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/cna/references/3
{"name":"3.4.6 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/d2e9efbe4900a373227deb136e8665401404ffac"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/cna/references/4
{"name":"4.0.1 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/fbaa83859c01ad64f497b757aaf51be7d05ed9eb"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/cna/references/1
{"name":"OpenSSL Advisory","tags":["vendor-advisory"],"url":"https://openssl-library.org/news/secadv/20260609.txt"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6a8a6be7eaea9c71e1b1f8f3bbc9d9d832e1f9329385a13c0883e863bbddea33 · sha256:aea137c3a2242353… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.