msgpack5: Decoding negative int64 values mutates the input buffer

Impact Decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer. Applications that retain or reuse encoded input for integrity checks, logging, or subsequent processing may observe silently corrupted data. Positive integers and other MessagePa...

GHSA-QW35-55VC-RHGJ msgpack5: Decoding negative int64 values mutates the input buffer

Impact Decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer. Applications that retain or reuse encoded input for integrity checks, logging, or subsequent processing may observe silently corrupted data. Positive integers and other MessagePa...

CVE-2026-107296 msgpack5: Decoding negative int64 values mutates the input buffer

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks,...

CVE-2026-107296 msgpack5: Decoding negative int64 values mutates the input buffer

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks,...

CVE-2026-107296 msgpack5: Decoding negative int64 values mutates the input buffer

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks,...

GHSA-C85P-XXJJ-2R75 Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil error, causing negative slice index panic on r="0" rows

Summary ColumnNameToNumber lib.go:220-237 accumulates the bijective base-26 value of a column name in an int64 with only an upper-bound check col MaxColumns applied after the loop and no overflow detection. A 14-letter column name whose true value is 3·2⁶⁴ — e.g. VGWQHXLSDVIKWV — wraps to col = 0...

Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil error, causing negative slice index panic on r="0" rows

Summary ColumnNameToNumber lib.go:220-237 accumulates the bijective base-26 value of a column name in an int64 with only an upper-bound check col MaxColumns applied after the loop and no overflow detection. A 14-letter column name whose true value is 3·2⁶⁴ — e.g. VGWQHXLSDVIKWV — wraps to col = 0...

CVE-2026-107217 Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil error, causing negative slice index panic on r="0" rows

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.0.0 to 2.11.0 in github.com/xuri/excelize/v2 and from 1.1.0 to 1.4.1 in github.com/xuri/excelize, ColumnNameToNumber accumulates a bijective base-26 value in int64 without detecting overflow, allowing a...

CVE-2026-107217

The Excelize Go library (versions 2.0.0 to 2.11.0 in github.com/xuri/excelize/v2 and 1.1.0 to 1.4.1 in github.com/xuri/excelize) is vulnerable to an integer overflow in the ColumnNameToNumber function. The library fails to detect overflows when accumulating a bijective base-26 value, allowing an ...

CVE-2026-107217 Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil error, causing negative slice index panic on r="0" rows

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.0.0 to 2.11.0 in github.com/xuri/excelize/v2 and from 1.1.0 to 1.4.1 in github.com/xuri/excelize, ColumnNameToNumber accumulates a bijective base-26 value in int64 without detecting overflow, allowing a...

GO-2026-6330 klever-go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply in github.com/klever-io/klever-go

klever-go: SFT add-quantity int64 overflow bypasses a finite per-nonce MaxSupply in github.com/klever-io/klever-go...

CVE-2026-55764

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation performed meta.Circulation ...

klever-go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply

Summary On the SFT add-quantity path the only supply bound is SFTAddCirculation, which does meta.Circulation += amount with no overflow guard, then checks if meta.Circulation meta.MaxSupply && meta.MaxSupply != 0. If amount overflows int64 and wraps negative, negative MaxSupply is false, the cap...

CVE-2026-55764 Klever-Go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation performed meta.Circulation ...

CVE-2026-55764 Klever-Go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation performed meta.Circulation ...

CVE-2026-55764

Klever-Go (the Go implementation of the Klever blockchain protocol), prior to 1.7.19 , contains a signed int64 overflow in the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation added amount to meta.Circulation before comparing against MaxSupply, ...

CVE-2026-55764

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddCirculation performed meta.Circulation ...

PT-2026-83346

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.19 Description Klever-Go, a Go implementation of the Klever blockchain protocol, contains an integer overflow issue in the semi-fungible token SFT add-quantity path. In the SFTAddCirculation function within...

Integer Overflow

Overview Affected versions of this package are vulnerable to Integer Overflow leading to an out-of-bounds write in the s2.NewDict function in s2/dict.go, which reads a uvarint and converts it to int without checking whether it exceeds MaxInt64. An attacker can crash the process with a segmentatio...

libarchive: libarchive: Signed Integer Overflow in archive_write_zip_header

A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archivewritezipheader function in archivewritesetformatzip.c, when ZIP encryption is enabled and the entry file size is close to INT64MAX, the addition of the encryption overhead to the entry size overflows int64...