CVE-2026-24783

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-24783
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24783.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-24783
Aliases
Published
2026-01-27T22:04:18Z
Modified
2026-10-21T02:49:03Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
soroban-fixed-point-math has Incorrect Rounding and Overflow Handling in Signed Fixed-Point Math with Negatives
Details

soroban-fixed-point-math is a fixed-point math library for Soroban smart contacts. In versions 1.3.0 and 1.4.0, the mulDiv(x, y, z) function incorrectly handled cases where both the intermediate product $x * y$ and the divisor $z$ were negative. The logic assumed that if the intermediate product was negative, the final result must also be negative, neglecting the sign of $z$. This resulted in rounding being applied in the wrong direction for cases where both $x * y$ and $z$ were negative. The functions most at risk are fixed_div_floor and fixed_div_ceil, as they often use non-constant numbers as the divisor $z$ in mulDiv. This error is present in all signed FixedPoint and SorobanFixedPoint implementations, including i64, i128, and I256. Versions 1.3.1 and 1.4.1 contain a patch. No known workarounds for this issue are available.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-682"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24783.json"
}
References

Affected packages

Git / github.com/script3/soroban-fixed-point-math

Affected ranges

Type
GIT
Repo
https://github.com/script3/soroban-fixed-point-math
Events
Introduced
3b8ea420cdbbc856ddbb992f62902f5e555462bf
Fixed
c9233f7094198a49ed66a4d75786a8a3755c936a
Fixed
c80b36a997bed21a44e7e5125a366ea915bf2875
Fixed
0afac18b0d75e27ed154e10b46dab566034ca32e
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "= 1.4.0"
                },
                {
                    "last_affected":  "= 1.4.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandaloneSingleVersion"
        },
        {
            "range":  [
                {
                    "introduced":  "= 1.3.0"
                },
                {
                    "last_affected":  "= 1.3.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandaloneSingleVersion"
        },
        {
            "range":  [
                {
                    "fixed":  "c9233f7094198a49ed66a4d75786a8a3755c936a"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v1.3.1",
            "range":  [
                {
                    "fixed":  "c80b36a997bed21a44e7e5125a366ea915bf2875"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "original_tag":  "v1.4.1",
            "range":  [
                {
                    "fixed":  "0afac18b0d75e27ed154e10b46dab566034ca32e"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

1.*
1.3.0
1.4.0
= 1.*
= 1.3.0
= 1.4.0
v1.*
v1.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-24783.json"