CVE-2026-34183

Aliases:DEBIAN-CVE-2026-34183UBUNTU-CVE-2026-34183ALPINE-CVE-2026-34183CGA-9w75-pmjm-p5h6CGA-cgmc-p8cj-mrp4CGA-gf4j-vjfp-8c3mCGA-25ph-76w6-rw82CGA-64cx-62gf-m7qrCGA-8g4c-pxp7-29j2CGA-9fpx-w258-fxfwCGA-c4h5-ffj2-fcpvCGA-h94v-mr54-vjhfCGA-jrq6-26mq-x8rvCGA-pm63-f339-8349CGA-vf4m-mv9q-p3qvCGA-wcf4-gr66-vqx4CGA-xm6c-wcqr-7hgw
Advisory lineage Upstream: 0 Downstream: 12
Analyzed
Published: 09 Jun 2026, 16:03
Last modified:10 Jun 2026, 15:51

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
1.05% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jun 2026, 16:03
Published
Vulnerability first disclosed
10 Jun 2026, 15:51
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 1.05%• Percentile: 63%

Techniques & Countermeasures

  • CWE-1325•Improperly Controlled Sequential Memory Allocation

    The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects.

Affected Systems

  • alpine•openssl

    ≥ 3.4.0, < 3.3.7-r1 | ≥ 3.4.0, < 3.5.7-r0 | ≥ 3.4.0, < 3.5.7-r0 | ≥ 3.4.0, < 3.5.7-r0

  • chainguard•libcrypto3

    < 3.6.3-r0

  • chainguard•libcrypto3-2.34

    < 3.6.3-r0

  • chainguard•openssl

    < 3.6.3-r0

  • chainguard•openssl-provider-fips-3.4.0

    < 0

  • chainguard•openssl-provider-fips-3.4.0-dbg

    < 0

  • chainguard•openssl-provider-fips-3.6.0

    < 0

  • chainguard•openssl-provider-fips-3.6.0-dbg

    < 0

  • wolfi•libcrypto3

    < 3.6.3-r0

  • wolfi•openssl

    < 3.6.3-r0

  • debian•openssl

    < 3.5.6-1~deb13u2 | < 3.6.3-1

  • ubuntu•edk2

    all | all

  • ubuntu•edk2-hwe

    all

  • ubuntu•nodejs

    all

  • ubuntu•openssl

    < 3.5.3-1ubuntu3.4 | < 3.5.5-1ubuntu3.2

  • openssl•openssl

    ≥ 4.0.0, < 4.0.1 | ≥ 3.4.0, < 3.4.6 | ≥ 3.5.0, < 3.5.7 | ≥ 3.6.0, < 3.6.3 | 4.0.0

References (16)