Vulnerability · CVE-2026-110747
Integer Overflow or Wraparound
Published Oct 28, 2026 · catalog updated Nov 2, 2026 · Integer Overflow or Wraparound
Last checked Nov 6, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-110747. EPSS is 0.39%. Act only if a listed version of Integer Overflow or Wraparound is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (Integer Overflow or Wraparound).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.39%
- Remediation
- Advisory link
- Affected products
- Debian:14 jackson-dataformats-binary · package maven
ProtobufParser._readStringKey() reads the length prefix of a protobuf map entry's string key into an attacker-controlled int and then checks (_inputPtr + len) <= _inputEnd using signed arithmetic. For values near Integer.MAX_VALUE the addition overflows to a negative value and the check passes even when the input contains no key data. The parser then calls _finishShortText(len), which expands the text buffer to the declared length via TextBuffer.expandCurrentSegment and Arrays.copyOf, throwing OutOfMemoryError: Requested array size exceeds VM limit. An 8-byte malformed message containing a map entry with a declared key length of 0x7FFFFFFF is sufficient. Configured StreamReadConstraints, including maxStringLength, maxNameLength, maxDocumentLength and maxNestingDepth, do not prevent the failure. Applications running with -XX:+ExitOnOutOfMemoryError terminate the JVM. This is the same integer-overflow pattern addressed for other call sites in the remediation associated with CVE-2026-104016 and CVE-2026-104017; the map-key call site was corrected on the 3.x branches only, leaving the corresponding 2.x branches unguarded. Release lines 2.18, 2.19 and 2.20 do not contain _readStringKey() and are not affected by this vector. No privileges or user interaction beyond the ability to submit data for parsing are required. The 3.0 release line and 3.1.0-3.1.5 / 3.2.0-3.2.1 do not contain _readStringKey() and are therefore not affected; the method first appears in 3.1.6 and 3.2.2, mirroring its introduction at 2.21.6 on the 2.x side.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- Debian:14 jackson-dataformats-binary0 → 2.22.4-1
- package mavenversion unspecified
How to fix CVE-2026-110747
Upgrade
CVE-2026-110747 lists a fix boundary at 2.22.4-1. Compare the installed build with that boundary before you change production.
Version check
Fixed in 2.22.4-1
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-110747. EPSS is 0.39%. Act only if a listed version of Integer Overflow or Wraparound is installed.
Which versions are affected?
Compare what you have installed with 0 → 2.22.4-1. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 28, 2026 · Tenable CVE Database
Detected
ProtobufParser._readStringKey() reads the length prefix of a protobuf map entry's string key into an attacker-controlled int and then checks (_inputPtr + len) <= _inputEnd using signed arithmetic. For values near Integer.MAX_VALUE the addition overflows to a negative value and the check passes even when the input contains no key data. The parser then calls _finishShortText(len), which expands the
Nov 2, 2026 · OpenSSF OSV / OSV Scanner
Fix available
jackson-dataformats-binary fixed in 2.22.4-1
Nov 2, 2026 · OpenSSF OSV / OSV Scanner
Fix available
jackson-dataformats-binary fixed in 2.22.4-1
Nov 2, 2026 · OpenSSF OSV / OSV Scanner
Updated
ProtobufParser._readStringKey() reads the length prefix of a protobuf map entry's string key into an attacker-controlled int and then checks (_inputPtr + len) <= _inputEnd using signed arithmetic. For values near Integer.MAX_VALUE the addition overflows to a negative value and the check passes even when the input contains no key data. The parser then calls _finishShortText(len), which expands the
Sources
- CVE.orgVulnerability recordCVE-2026-110747
Official CVE identifier
cve.org - OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-110747osv.dev
- Snyk Vulnerability DatabasePackage advisorySNYK-JAVA-COMFASTERXMLJACKSONDATAFORMAT-21762814
Integer Overflow or Wraparound
security.snyk.io - Snyk Vulnerability DatabasePackage advisorySNYK-JAVA-TOOLSJACKSONDATAFORMAT-21762815
Integer Overflow or Wraparound
security.snyk.io - Tenable CVE DatabaseVulnerability recordCVE-2026-110747
ProtobufParser._readStringKey() reads the length prefix of a protobuf map entry's string key into an attacker-controlled int and then checks (_inputPtr + len) <= _inputEnd using signed arithmetic. For values near Integer.MAX_VALUE the addition overflows to a negative value and the check passes even when the input contains no key data. The parser then calls _finishShortText(len), which expands the
tenable.com
References
Freshness
Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- OpenSSF OSV / OSV ScannerNov 2, 2026
- Snyk Vulnerability DatabaseOct 31, 2026
- Snyk Vulnerability DatabaseOct 31, 2026
- CVE.orgOct 28, 2026
- Tenable CVE DatabaseOct 28, 2026