CVE-2024-45192
An issue was discovered in Matrix libolm (aka Olm) through 3.2.16. Cache-timing attacks can occur...
An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
CVE-2024-45192- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-385
- Updated
- 2026-11-02
EUVDEUVD-2024-41368
An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
EUVD-2024-41368- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5qxq-95fv-whxm
An issue was discovered in Matrix libolm (aka Olm) through 3.2.16. Cache-timing attacks can occur...
An issue was discovered in Matrix libolm (aka Olm) through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
GHSA-5qxq-95fv-whxm- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-385
- Updated
- 2026-11-02
NVD
An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
CVE-2024-45192- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-385
- Updated
- 2026-11-02
OSV
An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
CVE-2024-45192- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2024-45192
An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
DEBIAN-CVE-2024-45192- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-45192
An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
- Record
UBUNTU-CVE-2024-45192- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
olmDebian:12 |
All versions, plus listed versions 3.2.13~dfsg-13.2.15~dfsg-13.2.16+dfsg-13.2.16+dfsg-23.2.16+dfsg-33.2.16+dfsg-43.2.16+dfsg-53.2.16+dfsg-6 |
None known |
olmDebian:13 |
All versions, plus listed versions 3.2.16+dfsg-33.2.16+dfsg-43.2.16+dfsg-53.2.16+dfsg-6 |
None known |
olmDebian:14 |
All versions, plus listed versions 3.2.16+dfsg-33.2.16+dfsg-43.2.16+dfsg-53.2.16+dfsg-6 |
None known |
olmUbuntu:18.04:LTS |
All versions, plus listed versions 2.2.2+git20170526.0fd768e+dfsg-1 |
None known |
olmUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 3.1.3+dfsg-23.1.3+dfsg-2build13.1.3+dfsg-2build23.1.3+dfsg-2ubuntu0.1~esm1 |
None known |
olmUbuntu:22.04:LTS |
All versions, plus listed versions 3.2.1~dfsg-7ubuntu23.2.1~dfsg-7ubuntu33.2.10~dfsg-4ubuntu13.2.10~dfsg-5ubuntu13.2.10~dfsg-6ubuntu1 |
None known |
olmUbuntu:24.04:LTS |
All versions, plus listed versions 3.2.13~dfsg-1ubuntu13.2.15~dfsg-1ubuntu13.2.16+dfsg-2 |
None known |
olmUbuntu:25.10 |
All versions, plus listed versions 3.2.16+dfsg-3 |
None known |
olmUbuntu:26.10 |
All versions, plus listed versions 3.2.16+dfsg-53.2.16+dfsg-6 |
None known |
olmUbuntu:26.04:LTS |
All versions, plus listed versions 3.2.16+dfsg-33.2.16+dfsg-5 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-45192 is a medium vulnerability (CVSS 5.3) in Matrix Olm, published August 22, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. No source names a fixed version.