Catalogo CVE
CVE-2026-39894
Cacti is an open source performance and fault management framework. In versions 1.2.30 and below, the locale-dependent decimal formatting in rrdtool_function_update() can corrupt RRDtool metric values
- Gravità
- Low · CVSS 2.9
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.14% · Oct 22, 2026
Cacti is an open source performance and fault management framework. In versions 1.2.30 and below, the locale-dependent decimal formatting in rrdtool_function_update() can corrupt RRDtool metric values. The rrdtool_function_update() function checks metric values with is_numeric() and concatenates them into the RRDtool update command via PHP string interpolation. PHP's string cast of floats is locale-sensitive: if LC_NUMERIC uses comma as decimal separator (e.g., de_DE), a value of 1.5 becomes "1,5". RRDtool expects . as decimal separator, causing metric data to shift into wrong columns or be silently dropped. No setlocale() reset is present in the update path. This causes a data integrity issue, but is not remotely exploitable; it requires server locale misconfiguration. The issue has been fixed in version 1.2.31.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | cacti | sid | 1.2.31+ds1-4 | fixed |
| Debian | cacti | forky | 1.2.31+ds1-4 | fixed |
| Debian | cacti | trixie | 1.2.30+ds1-1 | vulnerable |
| Debian | cacti | bookworm | 1.2.24+ds1-1+deb12u5 | vulnerable |
| Debian | cacti | bookworm-security | 1.2.24+ds1-1+deb12u5 | vulnerable |
| Cpe | cacti | Not reported | Not reported | vulnerable |
| Cpe | cacti | Not reported | 1.2.31 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | cacti | source | sid | 1.2.31+ds1-1 | not yet assigned | Not reported | [1140813] |
| Debian | cacti | source | forky | 1.2.31+ds1-1 | not yet assigned | Not reported | [1140813] |
| Debian | cacti | source | trixie | (unfixed) | not yet assigned | Not reported | [1140813] |
| Debian | cacti | source | bookworm | (unfixed) | not yet assigned | Not reported | [1140813] |
| Cpe | cacti | cpe | Not reported | 1.2.31 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [cacti]Interessata
Dettagli (4)
1.2.24+ds1-1+deb12u5· all · bookwormInteressata
nvd · cacti · debian · bookworm; nvd · cacti · debian · 12
1.2.24+ds1-1+deb12u5· all · bookwormInteressata
nvd · cacti · debian · bookworm; nvd · cacti · debian · 12
1.2.24+ds1-1+deb12u5· all · bookworm-securityInteressata
nvd · cacti · debian · bookworm; nvd · cacti · debian · 12
1.2.24+ds1-1+deb12u5· all · bookworm-securityInteressata
nvd · cacti · debian · bookworm; nvd · cacti · debian · 12
[Debian 13 (Trixie)]
- [cacti]Interessata
Dettagli (2)
1.2.30+ds1-1· all · trixieInteressata
nvd · cacti · debian · 13
1.2.30+ds1-1· all · trixieInteressata
nvd · cacti · debian · 13
Osservato:
Riferimenti
- [https://nvd.nist.gov/vuln/detail/CVE-2026-39894]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-39894]
- [https://security-tracker.debian.org/tracker/CVE-2026-39894]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1931.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]