CVE catalog
CVE-2026-44597
Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.
- Severity
- Critical · CVSS 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.45% · Oct 25, 2026
Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.
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 | tor | sid | 0.4.9.14-1 | fixed |
| Debian | tor | forky | 0.4.9.14-1 | fixed |
| Debian | tor | trixie | 0.4.9.11-0+deb13u1 | fixed |
| Debian | tor | trixie-security | 0.4.9.14-0+deb13u1 | fixed |
| Debian | tor | bookworm | 0.4.9.11-0+deb12u1 | fixed |
| Debian | tor | bookworm-security | 0.4.9.11-0+deb12u1 | fixed |
| Cpe | tor | Not reported | 0.4.9.7 | fixed |
| Opensuse | tor | tumbleweed | 0.4.9.8-1.1 | fixed |
| Cpe | tor | Not reported | 0.4.9.7 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tor | source | sid | 0.4.9.8-1 | not yet assigned | Not reported | Not reported |
| Debian | tor | source | forky | 0.4.9.8-1 | not yet assigned | Not reported | Not reported |
| Debian | tor | source | trixie | 0.4.9.8-0+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | tor | source | bookworm | 0.4.9.8-0+deb12u1 | not yet assigned | Not reported | Not reported |
| Cpe | tor | cpe | Not reported | 0.4.9.7 | Not reported | Not reported | Not reported |
| Opensuse | tor | rpm | tumbleweed | 0.4.9.8-1.1 | Not reported | OPENSUSE-SU-2026:10735-1 | Not reported |
| Cpe | tor | cpe | Not reported | 0.4.9.7 | Not reported | NVD-CVE-2026-44597 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [tor]Affected
Details (6)
0.4.9.11-0+deb12u1· amd64 · bookwormFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.9.11-0+deb12u1· arm64 · bookwormFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.8.14-1~bpo12+1· amd64 · bookworm-backportsAffected · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.8.14-1~bpo12+1· arm64 · bookworm-backportsAffected · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.9.11-0+deb12u1· amd64 · bookworm-securityFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.9.11-0+deb12u1· arm64 · bookworm-securityFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
- [tor-geoipdb]Affected
Source package: [tor]
Details (6)
0.4.9.11-0+deb12u1· all · bookwormFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.9.11-0+deb12u1· all · bookwormFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.8.14-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.8.14-1~bpo12+1· all · bookworm-backportsAffected · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.9.11-0+deb12u1· all · bookworm-securityFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
0.4.9.11-0+deb12u1· all · bookworm-securityFixed · Fixed:
0.4.9.8-0+deb12u1nvd · tor · debian · bookworm; nvd · tor · debian · 12
[Debian 13 (Trixie)]
- [tor]Fixed
Details (10)
0.4.9.11-0+deb13u1· amd64 · trixieFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-0+deb13u1· arm64 · trixieFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-0+deb13u1· arm64 · trixie-securityFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.12-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.12-0+deb13u2· amd64 · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.13-0+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.14-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
- [tor-geoipdb]Fixed
Source package: [tor]
Details (10)
0.4.9.11-0+deb13u1· all · trixieFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-0+deb13u1· all · trixieFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-1~bpo13+1· all · trixie-backportsFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-1~bpo13+1· all · trixie-backportsFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-0+deb13u1· all · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.11-0+deb13u1· all · trixie-securityFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.12-0+deb13u1· all · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.12-0+deb13u2· all · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.13-0+deb13u1· all · trixie-security · Historical versionFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
0.4.9.14-0+deb13u1· all · trixie-securityFixed · Fixed:
0.4.9.8-0+deb13u1nvd · tor · debian · 13
[openSUSE Tumbleweed]
Observed:
References
- [https://forum.torproject.org/c/news/tor-release-announcement/28]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10735-1.json]
- [https://gitlab.torproject.org/tpo/core/tor/-/commit/8f98054b1982d00a14639864d03e9afd90b87481]
- [https://gitlab.torproject.org/tpo/core/tor/-/work_items/41254]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44597]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-44597]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10735-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-44597]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44597.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1398.json]
- [https://www.openwall.com/lists/oss-security/2026/05/06/8]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]