GHSA-rgqc-3x5p-6gwg
postgres-protocol: Panic decoding a malformed `hstore` value allows denial of service
GHSA-rgqc-3x5p-6gwg is a medium vulnerability (CVSS 6.9) in postgres-protocol, published June 12, 2026. No source lists public exploit code. Fixed in postgres-protocol 0.6.12.
- Severity
- 6.9 MediumCVSS 4.0, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
0.6.12postgres-protocol +1 more
Description
A malicious or compromised server can return a binary hstore value with an
invalid internal length field, causing the client to panic while decoding it.
Applications that connect only to a trusted database are not exposed; the risk applies to clients that may connect to untrusted or user-supplied servers, or whose connection can be intercepted by a man-in-the-middle.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Affected packages
| Package | Affected | Fixed |
|---|---|---|
postgres-protocolcrates.io | before 0.6.12 | 0.6.12 |
postgres-protocolcrates.io | 0.0.0-0 up to 0.6.12 | 0.6.12 |
What each source reports
GitHub Advisories Score used
postgres-protocol: Panic decoding a malformed `hstore` value allows denial of service
A malicious or compromised server can return a binary hstore value with an
invalid internal length field, causing the client to panic while decoding it.
Applications that connect only to a trusted database are not exposed; the risk applies to clients that may connect to untrusted or user-supplied servers, or whose connection can be intercepted by a man-in-the-middle.
- Record
GHSA-rgqc-3x5p-6gwg- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Weakness
- CWE-20, CWE-248
- Updated
- 2026-11-02
OSV
postgres-protocol: Panic decoding a malformed `hstore` value allows denial of service
A malicious or compromised server can return a binary hstore value with an
invalid internal length field, causing the client to panic while decoding it.
Applications that connect only to a trusted database are not exposed; the risk applies to clients that may connect to untrusted or user-supplied servers, or whose connection can be intercepted by a man-in-the-middle.
- Record
GHSA-rgqc-3x5p-6gwg- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Weakness
- CWE-20, CWE-248
- Updated
- 2026-11-02
OSVRUSTSEC-2026-0180
Panic decoding a malformed `hstore` value allows denial of service
A malicious or compromised server can return a binary hstore value with an
invalid internal length field, causing the client to panic while decoding it.
Applications that connect only to a trusted database are not exposed; the risk applies to clients that may connect to untrusted or user-supplied servers, or whose connection can be intercepted by a man-in-the-middle.
- Record
RUSTSEC-2026-0180- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/rust-postgres/rust-postgres/commit/a7cf84b5c46431cbca9d8ff50508c23f446efa7d
rustsec.org/advisories/RUSTSEC-2026-0180.html
crates.io/crates/postgres-protocol