synced 13 MIN AGO
01 Record

CVE-2022-23959

In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.01% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 80.3% of scored records. A rank, not a probability.
NVD base score
9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-01-26 00:38Z4 YR AGO
Last updated
2024-08-03 03:59Z2 YR AGO
Reserved
2022-01-26
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base
Data version
5.1
Document digest
f9e76e997d56a199dac93c2c591d4d27104dd2310728ef49f43b27ca40b9319a

05 Affected products

VendorProductVersionsPlatforms
debiandebian_linuxNot specified—
fedoraprojectfedoraNot specified—
redhatenterprise_linuxNot specified—
redhatrhel_e4sNot specified—
redhatrhel_eusNot specified—
redhatrhel_software_collectionsNot specified—
varnish-softwarevarnich_cacheNot specified—
varnish-softwarevarnish_cacheNot specified—
varnish-softwarevarnish_cache_plusNot specified—
varnish_cache_projectvarnish_cacheNot specified—

06 References

07 Fixed in

AlmaLinux 8

  • varnish
    Fixed

    A version is affected if any line below covers it.

    • Affected before 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1
    • Affected before 6.0.8-1.module_el8.5.0+76+a10ffa55
  • varnish-devel
    Fixed

    A version is affected if any line below covers it.

    • Affected before 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1
    • Affected before 6.0.8-1.module_el8.5.0+76+a10ffa55
  • varnish-docs
    Fixed

    A version is affected if any line below covers it.

    • Affected before 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1
    • Affected before 6.0.8-1.module_el8.5.0+76+a10ffa55
  • varnish-modules
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.15.0-6.module_el8.5.0+2620+03a0c2cc
    • Affected before 0.15.0-6.module_el8.5.0+76+a10ffa55

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • varnish
    Fixed

    A version is affected if any line below covers it.

    • Affected before 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1
    • Affected before 6.0.8-1.module_el8.5.0+76+a10ffa55
  • varnish-devel
    Fixed

    A version is affected if any line below covers it.

    • Affected before 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1
    • Affected before 6.0.8-1.module_el8.5.0+76+a10ffa55
  • varnish-docs
    Fixed

    A version is affected if any line below covers it.

    • Affected before 6.0.8-1.module_el8.5.0+2620+03a0c2cc.1
    • Affected before 6.0.8-1.module_el8.5.0+76+a10ffa55
  • varnish-modules
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.15.0-6.module_el8.5.0+2620+03a0c2cc
    • Affected before 0.15.0-6.module_el8.5.0+76+a10ffa55

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • varnish
    Fixed in 7.1.0-5

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • varnish
    Fixed in 7.1.0-5

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • varnish
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • varnish
    Fixed in 5.2.1-1ubuntu0.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • varnish
    Fixed in 6.2.1-2ubuntu0.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • varnish
    Fixed in 6.6.1-1ubuntu0.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • varnish
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • varnish
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • varnish
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • varnish
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • varnish
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.