synced 9 MIN AGO
01 Record

CVE-2026-32748

Squid has Denial of Service in ICP Response handling

HighPUBLISHEDCNA: GitHub_M
CNA base score8.7 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
View raw JSON

02 Description

Squid has Denial of Service in ICP Response handling

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
9.06% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 95.2% of scored records. A rank, not a probability.
NVD base score
8.7 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD analysis status
Modified. NVD last modified this record on 2026-07-15.
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
2026-03-26 00:11Z7 MO AGO
Last updated
2026-07-15 01:07Z3 MO AGO
Reserved
2026-03-13
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.7)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
Weaknesses
  • CWE-413Improper Resource LockingBase
  • CWE-416Use After FreeVariant
  • CWE-826Premature Release of Resource During Expected LifetimeBase
Data version
5.2
Document digest
0cf3ac10bab143574d542ba5e0050bae1c4f192049f796a8b7040183f56bf119

05 Affected products

VendorProductVersionsPlatforms
squid-cachesquid< 7.5—

06 References

07 Fixed in

AlmaLinux 8

  • libecap
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
    • Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
  • libecap-devel
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
    • Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
  • squid
    Fixed in 7:4.15-10.module_el8.10.0+4163+e77fcdac.11

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

AlmaLinux 9

  • squid
    Fixed in 7:5.5-22.el9_7.4

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

AlmaLinux 10

  • squid
    Fixed in 7:6.10-6.el10_1.3

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

CloudLinux 8

  • libecap
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
    • Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
  • libecap-devel
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1.0.1-2.module_el8.6.0+2741+01592ae8
    • Affected before 1.0.1-2.module_el8.6.0+3048+383bc947
  • squid
    Fixed in 7:4.15-10.module_el8.10.0+4163+e77fcdac.11

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.

CloudLinux 9

  • squid
    Fixed in 7:5.5-22.el9_7.4

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 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.

CloudLinux 10

  • squid
    Fixed in 7:6.10-6.el10_1.3

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 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

  • squid
    No fix yet

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

Debian 13

  • squid
    Fixed in 6.13-2+deb13u3

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

Debian 14

  • squid
    Fixed in 7.5-1

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

Ubuntu 22.04 LTS

  • squid
    Fixed in 5.9-0ubuntu0.22.04.5

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

Ubuntu 24.04 LTS

  • squid
    Fixed in 6.14-0ubuntu0.24.04.2

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

Ubuntu 25.10

  • squid
    Fixed in 6.14-0ubuntu0.25.10.2

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

Ubuntu Pro 16.04 LTS

  • squid3
    Fixed in 3.5.12-1ubuntu7.16+esm7
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro

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

Ubuntu Pro 18.04 LTS

  • squid3
    Fixed in 3.5.27-1ubuntu1.14+esm6
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

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

Ubuntu Pro 20.04 LTS

  • squid
    Fixed in 4.10-1ubuntu1.13+esm3
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

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.