Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (OpenSSL OpenSSL)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.05 % · percentile 64 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- openssl
- NVD status
- Analyzed
Description
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 every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.
Weaknesses (CWE)
- CWE-1325 — Improperly Controlled Sequential Memory Allocation
References
- https://openssl-library.org/news/secadv/20260609.txt
- https://github.com/openssl/openssl/commit/fbaa83859c01ad64f497b757aaf51be7d05ed9eb
- https://github.com/openssl/openssl/commit/5b306efb0b3779dfdd0803b4afc9d08c91f11517
- https://github.com/openssl/openssl/commit/7d06955ebe0ecf8adfd4c1e92018586da47ef9ac
- https://github.com/openssl/openssl/commit/d2e9efbe4900a373227deb136e8665401404ffac
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-35479
- GCVE · GCVE-0-2026-34183
CERT-FR advisories
- CERTFR-2026-AVI-1431 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1390 — Multiples vulnérabilités dans Tenable Network Monitor · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1352 — Multiples vulnérabilités dans Oracle PeopleSoft · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1249 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0914 — Multiples vulnérabilités dans Oracle Database Server · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0796 — Multiples vulnérabilités dans Tenable Identity Exposure · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0792 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0717 — Multiples vulnérabilités dans OpenSSL · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*≥ 3.4.0 < 3.4.6cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*≥ 3.5.0 < 3.5.7cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*≥ 3.6.0 < 3.6.3cpe:2.3:a:openssl:openssl:4.0.0:-:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| OpenSSL · OpenSSL | affected 4.0.0 < 4.0.1 ; affected 3.6.0 < 3.6.3 ; affected 3.5.0 < 3.5.7 ; affected 3.4.0 < 3.4.6 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |