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CVE-2026-14683

HdrHistogram AbstractHistogram.java memory allocation

4.8 MediumFix availableDisputed

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.16%Unchanged since Jul 5, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.8

HdrHistogram AbstractHistogram.java memory allocation

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

Record
CVE-2026-14683
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CVSS 3.0
3.3 LowCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CVSS 2.0
1.7 AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR
Weakness
CWE-789, CWE-400
Updated
2026-11-02
EUVDEUVD-2026-41705 4.8

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

Record
EUVD-2026-41705
CVSS 4.0
4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Updated
2026-11-02
GitHub AdvisoriesGHSA-xw83-8gp3-pg5q 1.9

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function...

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Record
GHSA-xw83-8gp3-pg5q
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-400
Updated
2026-11-02
NVD 1.9

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

Record
CVE-2026-14683
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS 2.0
1.7 LowAV:L/AC:L/Au:S/C:N/I:N/A:P
Weakness
CWE-400, CWE-789
Updated
2026-11-02
OSV 1.9

HdrHistogram AbstractHistogram.java memory allocation

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

Record
CVE-2026-14683
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Weakness
CWE-400, CWE-789
Updated
2026-11-02
OSVDEBIAN-CVE-2026-14683 1.9

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

Record
DEBIAN-CVE-2026-14683
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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
Updated
2026-11-02
Show 7 moreShow less
OSVRHSA-2026:26989 5.0

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:26989
CVSS 3.1
5.0 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVRHSA-2026:34975 8.1

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Record
RHSA-2026:34975
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2026-14683 1.9

A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

Record
UBUNTU-CVE-2026-14683
CVSS 4.0
1.9 LowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CVSS 3.1
3.3 LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVCLSA-2026-1791983637 No score

TuxCare security update for org.hdrhistogram:HdrHistogram (1 CVE)

TuxCare rebuilt org.hdrhistogram:HdrHistogram to address 1 CVE. Fixed in 2.1.12-tuxcare.1.

Record
CLSA-2026-1791983637
Updated
2026-11-02
OSVCLSA-2026-1793128769 No score

TuxCare security update for org.hdrhistogram:HdrHistogram (1 CVE)

TuxCare rebuilt org.hdrhistogram:HdrHistogram to address 1 CVE. Fixed in 2.1.11-tuxcare.1.

Record
CLSA-2026-1793128769
Updated
2026-11-02
OSVCLSA-2026-1793198846 No score

TuxCare security update for org.hdrhistogram:HdrHistogram (1 CVE)

TuxCare rebuilt org.hdrhistogram:HdrHistogram to address 1 CVE. Fixed in 2.1.8-tuxcare.1.

Record
CLSA-2026-1793198846
Updated
2026-11-02
OSVCLSA-2026-1793198943 No score

TuxCare security update for org.hdrhistogram:HdrHistogram (1 CVE)

TuxCare rebuilt org.hdrhistogram:HdrHistogram to address 1 CVE. Fixed in 2.1.10-tuxcare.1.

Record
CLSA-2026-1793198943
Updated
2026-11-02

Affected packages

Affected packages
PackageAffectedFixed
org.hdrhistogram:HdrHistogram
TuxCare:Maven
 2.1.12 up to 2.1.12-tuxcare.1
2.1.12-tuxcare.1
org.hdrhistogram:HdrHistogram
TuxCare:Maven
 2.1.11 up to 2.1.11-tuxcare.1
2.1.11-tuxcare.1
org.hdrhistogram:HdrHistogram
TuxCare:Maven
 2.1.8 up to 2.1.8-tuxcare.1
2.1.8-tuxcare.1
org.hdrhistogram:HdrHistogram
TuxCare:Maven
 2.1.10 up to 2.1.10-tuxcare.1
2.1.10-tuxcare.1
hdrhistogram
Debian:12
 All versions, plus listed versions
2.1.11-12.2.2-1
 None known
hdrhistogram
Debian:13
 All versions, plus listed versions
2.1.11-12.2.2-1
 None known
hdrhistogram
Debian:14
 before 2.2.2-1, plus listed versions
2.1.11-1
2.2.2-1
netavark
Red Hat:hummingbird:1
From an advisory covering 4 CVEs
 before 0:2.0.0-1.hum1
0:2.0.0-1.hum1
netavark-tests
Red Hat:hummingbird:1
From an advisory covering 4 CVEs
 before 0:2.0.0-1.hum1
0:2.0.0-1.hum1
cargo
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
Show 25 moreShow less
Affected packages
PackageAffectedFixed
clippy
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-analyzer
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-debugger-common
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-doc
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-gdb
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-lldb
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-src
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-aarch64-unknown-none-softfloat
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-aarch64-unknown-uefi
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-i686-pc-windows-gnu
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-wasm32-unknown-unknown
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-wasm32-wasip1
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-x86_64-pc-windows-gnu
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-x86_64-unknown-none
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rust-std-static-x86_64-unknown-uefi
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
rustfmt
Red Hat:hummingbird:1
From an advisory covering 24 CVEs
 before 0:1.96.1-1.hum1
0:1.96.1-1.hum1
hdrhistogram
Ubuntu:18.04:LTS
 All versions, plus listed versions
2.1.10-1
 None known
hdrhistogram
Ubuntu:20.04:LTS
 All versions, plus listed versions
2.1.11-1
 None known
hdrhistogram
Ubuntu:22.04:LTS
 All versions, plus listed versions
2.1.11-1
 None known
hdrhistogram
Ubuntu:24.04:LTS
 All versions, plus listed versions
2.1.11-1
 None known
hdrhistogram
Ubuntu:25.10
 All versions, plus listed versions
2.1.11-1
 None known
hdrhistogram
Ubuntu:26.10
 All versions, plus listed versions
2.1.11-1build12.2.2-1
 None known
hdrhistogram
Ubuntu:26.04:LTS
 All versions, plus listed versions
2.1.11-12.1.11-1build1
 None known

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-14683 is a medium vulnerability (CVSS 4.8) in hdrhistogram, published July 4, 2026. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 5th percentile. Fixed in org.hdrhistogram:HdrHistogram 2.1.12-tuxcare.1.

References

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